Venous Thromboembolism Prophylaxis 15.0.000

This measure assesses the number of patients who received venous thromboembolism (VTE) prophylaxis or have documentation for why no VTE prophylaxis was given between the day of arrival to the day after hospital admission or surgery end date for surgeries that end the day after hospital admission

Measure specifications are in the Public Domain.

This material contains content from LOINC (http://loinc.org). LOINC is copyright (C) Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license. LOINC (R) is a registered United States trademark of Regenstrief Institute, Inc.

This material includes SNOMED Clinical Terms (R) (SNOMED CT [R]) which is used by permission of the International Health Terminology Standards Development Organisation (IHTSDO). All rights reserved. SNOMED CT (R), was originally created by The College of American Pathologists. "SNOMED" and "SNOMED CT" are registered trademarks of the IHTSDO.

These performance measures are not clinical guidelines, do not establish a standard of medical care, and have not been tested for all potential applications. The measures and specifications are provided without warranty.

The estimated annual incidence of deep-vein thrombosis (DVT) and pulmonary embolism (PE), known collectively as VTE, ranges from 350,000 to 600,000 in the United States (Maynard, 2015). According to the Centers for Disease Control and Prevention (CDC) 2025 statistics, a recent hospitalization is a leading cause of VTE and frequently the reason for an unplanned hospital readmission. Anticoagulation therapy or compression stockings worn during hospitalization may prevent 70% of hospital-associated VTEs but are administered to less than 50% of hospitalized patients.

VTE is a known complication of hospitalization, frequently extending the length of stay and increasing hospital mortality (Maynard, 2015). Approximately 20% of VTE are associated with a surgical procedure (Henke et al., 2020). Hospitalized patients at high-risk for VTE may develop an asymptomatic DVT, and die from PE even before the diagnosis is suspected. The majority of fatal events occur as sudden or abrupt death, underscoring the importance of prevention as the most critical action step for reducing death from PE (Geerts et al., 2008).

American Society of Hematology (ASH) 2018 VTE prophylaxis guidelines strongly recommend pharmacological prophylaxis using unfractionated heparin (UFH), low molecular weight heparin (LMWH) or fondaparinux for acutely and critically ill hospitalized medical patients, unless contraindicated. The use of mechanical prophylaxis is an acceptable alternative for patients with increased risk of bleeding and preferred over no prophylaxis. ASH 2019 guidelines for surgical patients similarly recommend pharmacological or mechanical prophylaxis over no VTE prophylaxis. (NOTE: Some select surgeries have previously been monitored in the Surgical Care Improvement Project; since performance on these surgeries has achieved very high levels, they are not included in this measure.)

Despite its proven effectiveness, VTE prophylaxis remains underused or inappropriately used in both medical and surgical patients (Kahn et al., 2018). The ENDORSE study evaluated prophylaxis rates in 17,084 major surgery patients and found that more than one third of patients at risk for VTE (38%) did not receive prophylaxis with various rates reported for different types of surgery (Cohen et al., 2008). More recently, a systematic review of multiple randomized controlled trials found that system-wide interventions, such as computer alerts to physicians and other healthcare professionals, increased the use of appropriate VTE prophylaxis while reducing the number of symptomatic VTE at three months (Kahn et al., 2018).

Failure to recognize and protect patients at risk for VTE increases the chances for acutely ill hospitalized patients at high risk for developing a DVT or dying from a PE. Screening all patients is the only evidence-based practice in reducing incidence of disease. All hospitalized patients should be evaluated for primary VTE prophylaxis and given appropriate prophylaxis when indicated.

Increased score indicates improvement

Reference Type: Citation

Reference Text:

Anderson, D. R., Morgano, G. P., Bennett, C., Dentali, F., Francis, C. W., Garcia, D. A., Kahn, S. R., Rahman, M., Rajasekhar, A., Rogers, F. B., Smythe, M. A., Tikkinen, K. A. O., Yates, A. J., Baldeh, T., Balduzzi, S., Brozek, J. L., Etxeandia-Ikobaltzeta, I., Johal, H., Neumann, I., . . . Dahm, P. (2019). American Society of Hematology 2019 guidelines for management of venous thromboembolism: prevention of venous thromboembolism in surgical hospitalized patients. Blood Advances, 3(23), 3898-3944. https://doi.org/10.1182/bloodadvances.2019000975

Reference Type: Citation

Reference Text: Beckman, M. G., Hooper, W. C., Critchley, S. E., & Ortel, T. L. (2010). Venous thromboembolism: A public health concern. American Journal of Preventive Medicine, 38(4 Suppl), S495–S501. https://doi.org/10.1016/j.amepre.2009.12.017

Reference Type: Citation

Reference Text:

Centers for Disease Control and Prevention. (2025, January 27). Data and statistics on venous thromboembolism. Retrieved November 12, 2025, from https://www.cdc.gov/blood-clots/data-research/facts-stats/

Reference Type: Citation

Reference Text:

Cohen, A. T., Tapson, V. F., Bergmann, J. F., Goldhaber, S. Z., Kakkar, A. K., Deslandes, B., Huang, W., Zayaruzny, M., Emery, L., Anderson, F. A., Jr, & ENDORSE Investigators. (2008). Venous thromboembolism risk and prophylaxis in the acute hospital care setting (ENDORSE study): a multinational cross-sectional study. Lancet, 371(9610), 387–394. https://doi.org/10.1016/S0140-6736(08)60202-0

Reference Type: Citation

Reference Text:

Geerts, W. H., Bergqvist, D., Pineo, G. F., Heit, J. A., Samama, C. M., Lassen, M. R., & Colwell, C. W. (2008). Prevention of venous thromboembolism: American College of Chest Physicians evidence-based clinical practice guidelines (8th ed.). Chest, 133(6 Suppl), 381S–453S. https://doi.org/10.1378/chest.08-0656

Reference Type: Citation

Reference Text:

Guyatt, G. H., Akl, E. A., Crowther, M., Gutterman, D. D., Schuünemann, H. J., & American College of Chest Physicians Antithrombotic Therapy and Prevention of Thrombosis Panel. (2012). Executive summary: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines. Chest, 141(2 Suppl), 7S–47S. https://doi.org/10.1378/chest.1412S3

Reference Type: Citation

Reference Text:

Henke, P. K., Kahn, S. R., Pannucci, C. J., Secemsky, E. A., Evans, N. S., Khorana, A. A., Creager, M. A., & Pradhan, A. D. (2020). Call to action to prevent venous thromboembolism in hospitalized patients: A policy statement from the American Heart Association. Circulation, 141(24), e914–e931. https://doi.org/10.1161/CIR.0000000000000769

Reference Type: Citation

Reference Text:

Kahn, S. R., Morrison, D. R., Diendéré, G., Piché, A., Filion, K. B., Klil-Drori, A. J., Douketis, J. D., Emed, J., Roussin, A., Tagalakis, V., Morris, M., & Geerts, W. (2018). Interventions for implementation of thromboprophylaxis in hospitalized patients at risk for venous thromboembolism. Cochrane Database of Systematic Reviews, 4(4), CD008201. https://doi.org/10.1002/14651858.CD008201.pub3

Reference Type: Citation

Reference Text:

Kearon, C., Akl, E. A., Comerota, A. J., Prandoni, P., Bounameaux, H., Goldhaber, S. Z., Nelson, M. E., Wells, P. S., Gould, M. K., Dentali, F., Crowther, M., & Kahn, S. R. (2012). Antithrombotic therapy for VTE disease: Antithrombotic therapy and prevention of thrombosis, 9th ed: American College of Chest Physicians evidence-based clinical practice guidelines. Chest, 141(2 Suppl), e419S–e496S. https://doi.org/10.1378/chest.11-2301

Reference Type: Citation

Reference Text:

Maynard, G. (2015). Preventing hospital-associated venous thromboembolism: A guide for effective quality improvement (2nd edition). Agency for Healthcare Research and Quality. AHRQ Publication No. 16-0001-EF. https://www.ahrq.gov/es/patient-safety/settings/hospital/vtguide/index.html

Reference Type: Citation

Reference Text:

Schünemann, H. J., Cushman, M., Burnett, A. E., Kahn, S. R., Beyer-Westendorf, J., Spencer, F. A., Rezende, S. M., Zakai, N. A., Bauer, K. A., Dentali, F., Lansing, J., Balduzzi, S., Darzi, A., Morgano, G. P., Neumann, I., Nieuwlaat, R., Yepes-Nuñez, J. J., Zhang, Y., & Wiercioch, W. (2018). American Society of Hematology 2018 guidelines for management of venous thromboembolism: Prophylaxis for hospitalized and nonhospitalized medical patients. Blood Advances, 2(22), 3198–3225. https://doi.org/10.1182/bloodadvances.2018022954

Reference Type: Citation

Reference Text:

Stevens, S. M., Woller, S. C., Kreuziger, L. B., Bounameaux, H., Doerschug, K., Geersing, G., Huisman, M. V., Kearon, C., King, C. S., Knighton, A. J., Lake, E., Murin, S., Vintch, J. R. E., Wells, P. S., & Moores, L. K. (2021). Executive summary: Antithrombotic therapy for VTE disease: Second update of the CHEST guideline and expert panel report. Chest, 160(6), 2247-2259. https://doi.org/10.1016/j.chest.2021.07.056

When low dose unfractionated heparin is administered for VTE prophylaxis, the intended administration route for low dose unfractionated heparin is subcutaneous.

Reasons for no pharmacological and no mechanical VTE prophylaxis must be explicitly documented by the medical doctor, advanced practice registered nurse, physician assistant, or pharmacist and linked with VTE prophylaxis. The only exception is patient refusal may be documented by a nurse. Ambulation alone is not a sufficient reason for not administering VTE prophylaxis. In order for ambulation/patient ambulating to be considered as an acceptable reason, there needs to be explicit documentation, e.g., "patient out of bed and ambulating in halls - no VTE prophylaxis needed."

This measure does not require the use of a specific risk assessment model or tool (e.g., Caprini, Padua, and IMPROVE) to determine VTE risk.

The denominator population includes patients with inpatient hospitalizations and patients from Acute Hospital Care at Home programs, who are treated and billed as inpatients but receive care in their home. Inpatient hospitalizations for patients with a principal procedure of selected surgeries are excluded from the measure’s denominator. Selected surgeries include general surgery, gynecological surgery, hip fracture surgery, hip/knee replacement surgery, intracranial neurosurgery, and urological surgery.

Inpatient hospitalizations for patients administered apixaban or edoxaban, medications included in the “Oral Factor Xa Inhibitor for VTE Prophylaxis or VTE Treatment” value set, would be counted in the numerator population only when the patients also have either a prior or present diagnosis of atrial fibrillation, a prior diagnosis of VTE, or a prior or present procedure of hip/knee replacement surgery.

This eCQM is an episode-based measure. An episode is defined as each inpatient hospitalization or encounter that ends during the measurement period.

This version of the eCQM uses QDM version 5.6. Please refer to the eCQI Resource Center (https://ecqi.healthit.gov/qdm) for more information on the QDM.

Inpatient hospitalizations for patients age 18 and older, discharged from hospital inpatient acute care without a diagnosis of VTE or obstetrics that ends during the measurement period

Equals Initial Population


 
  Inpatient hospitalizations for patients who have a length of stay less than 2 days
 
 
  Inpatient hospitalizations for patients who are direct admits to intensive care unit (ICU), or transferred to ICU the day of or the day after hospital admission with ICU length of stay greater than or equal to one day
 
 
  Inpatient hospitalizations for patients with a principal diagnosis of mental disorders or stroke
 
 
  Inpatient hospitalizations for patients with a principal procedure of selected surgeries
 
 
  Inpatient hospitalizations for patients with comfort measures documented anytime between the day of arrival and the day after hospital admission
 
 
  Inpatient hospitalizations for patients with comfort measures documented by the day after surgery end date for surgeries that end the day after hospital admission

Inpatient hospitalizations for patients who received VTE prophylaxis:

between the day of arrival and the day after hospital admission
the day of or the day after surgery end date (for surgeries that end the day after hospital admission)

Inpatient hospitalizations for patients with selected conditions or procedures who received Oral Factor Xa Inhibitor:

the day of or the day after hospital admission
the day of or the day after surgery end date (for surgeries that end the day after hospital admission)

Inpatient hospitalizations for patients who have documentation of a reason why no VTE prophylaxis was given:

between the day of arrival and the day after hospital admission
the day of or the day after surgery end date (for surgeries that end the day after hospital admission)

For every patient evaluated by this measure also identify payer, race, ethnicity and sex

Initial Population

  VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions"

- Denominator
  - "Initial Population"

Denominator Exclusions

  "Encounter Less Than 2 Days"
    union "Encounter With ICU Location Stay 1 Day Or More"
    union "Encounter With Principal Diagnosis Of Mental Disorder Or Stroke"
    union "Encounter With Principal Procedure Of Selected Surgery"
    union "Encounter With Intervention Comfort Measures From Day Of Start Of Hospitalization To Day After Admission"
    union "Encounter With Intervention Comfort Measures On Day Of Or Day After Procedure"

Numerator

  "Encounter With VTE Prophylaxis Received From Day Of Start Of Hospitalization To Day After Admission Or Procedure"
    union ( "Encounter With Medication Oral Factor Xa Inhibitor Administered On Day Of Or Day After Admission Or Procedure"
        intersect ( "Encounter With Prior Or Present Diagnosis Of Atrial Fibrillation Or Prior Diagnosis Of VTE"
            union "Encounter With Prior Or Present Procedure Of Hip Or Knee Replacement Surgery"
        )
    )
    union "Encounter With Low Risk For VTE Or Anticoagulant Administered"
    union "Encounter With No VTE Prophylaxis Due To Medical Reason"
    union "Encounter With No VTE Prophylaxis Due To Patient Refusal"

- Numerator Exclusions
  - None

- Denominator Exceptions
  - None

- Stratification
  - None

Denominator
- - "Initial Population"

Denominator Exclusions

  "Encounter Less Than 2 Days"
    union "Encounter With ICU Location Stay 1 Day Or More"
    union "Encounter With Principal Diagnosis Of Mental Disorder Or Stroke"
    union "Encounter With Principal Procedure Of Selected Surgery"
    union "Encounter With Intervention Comfort Measures From Day Of Start Of Hospitalization To Day After Admission"
    union "Encounter With Intervention Comfort Measures On Day Of Or Day After Procedure"

Encounter Less Than 2 Days

  VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter
    where Global."LengthInDays" ( QualifyingEncounter.relevantPeriod ) < 2

Encounter With ICU Location Stay 1 Day Or More

  VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter
    where exists ( QualifyingEncounter.facilityLocations Location
        where Location.code in "Intensive Care Unit"
          and Global."LengthInDays" ( Location.locationPeriod ) >= 1
          and Location.locationPeriod starts on or after start of QualifyingEncounter.relevantPeriod
          and date from ( start of Location.locationPeriod ) during JC."CalendarDayOfOrDayAfter" ( start of QualifyingEncounter.relevantPeriod )
    )

Encounter With Intervention Comfort Measures From Day Of Start Of Hospitalization To Day After Admission

  VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter
    with JC."Intervention Comfort Measures" ComfortMeasures
      such that Coalesce(start of Global."NormalizeInterval"(ComfortMeasures.relevantDatetime, ComfortMeasures.relevantPeriod), ComfortMeasures.authorDatetime) during day of "FromDayOfStartOfHospitalizationToDayAfterAdmission" ( QualifyingEncounter )

Encounter With Intervention Comfort Measures On Day Of Or Day After Procedure

  from
    VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter,
    ["Procedure, Performed": "General or Neuraxial Anesthesia"] AnesthesiaProcedure,
    JC."Intervention Comfort Measures" ComfortMeasures
    where Global."NormalizeInterval" ( AnesthesiaProcedure.relevantDatetime, AnesthesiaProcedure.relevantPeriod ) ends 1 day after day of start of QualifyingEncounter.relevantPeriod
        and Coalesce(start of Global."NormalizeInterval"(ComfortMeasures.relevantDatetime, ComfortMeasures.relevantPeriod), ComfortMeasures.authorDatetime) during day of JC."CalendarDayOfOrDayAfter" ( end of Global."NormalizeInterval" ( AnesthesiaProcedure.relevantDatetime, AnesthesiaProcedure.relevantPeriod ) )
    return QualifyingEncounter

Encounter With Low Risk For VTE Or Anticoagulant Administered

  "Low Risk For VTE Or Anticoagulant Administered From Day Of Start Of Hospitalization To Day After Admission"
    union "Low Risk For VTE Or Anticoagulant Administered On Day Of Or Day After Procedure"

Encounter With Medication Oral Factor Xa Inhibitor Administered On Day Of Or Day After Admission Or Procedure

  ( VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter
      with ["Medication, Administered": "Oral Factor Xa Inhibitor for VTE Prophylaxis or VTE Treatment"] FactorXaMedication
        such that Global."NormalizeInterval" ( FactorXaMedication.relevantDatetime, FactorXaMedication.relevantPeriod ) starts during day of JC."CalendarDayOfOrDayAfter" ( start of QualifyingEncounter.relevantPeriod )
  )
    union ( from
        VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter,
        ["Procedure, Performed": "General or Neuraxial Anesthesia"] AnesthesiaProcedure,
        ["Medication, Administered": "Oral Factor Xa Inhibitor for VTE Prophylaxis or VTE Treatment"] FactorXaMedication
        where Global."NormalizeInterval" ( AnesthesiaProcedure.relevantDatetime, AnesthesiaProcedure.relevantPeriod ) ends 1 day after day of start of QualifyingEncounter.relevantPeriod
          and Global."NormalizeInterval" ( FactorXaMedication.relevantDatetime, FactorXaMedication.relevantPeriod ) starts during day of JC."CalendarDayOfOrDayAfter" ( end of Global."NormalizeInterval" ( AnesthesiaProcedure.relevantDatetime, AnesthesiaProcedure.relevantPeriod ) )
        return QualifyingEncounter
    )

Encounter With No VTE Prophylaxis Due To Medical Reason

  ( "No VTE Prophylaxis Medication Due To Medical Reason From Day Of Start Of Hospitalization To Day After Admission"
      intersect "No Mechanical VTE Prophylaxis Due To Medical Reason From Day Of Start Of Hospitalization To Day After Admission"
  )
    union ( "No VTE Prophylaxis Medication Due To Medical Reason On Day Of Or Day After Procedure"
        intersect "No Mechanical VTE Prophylaxis Due To Medical Reason On Day Of Or Day After Procedure"
    )

Encounter With No VTE Prophylaxis Due To Patient Refusal

  "No VTE Prophylaxis Due To Patient Refusal From Day Of Start Of Hospitalization To Day After Admission"
    union "No VTE Prophylaxis Due To Patient Refusal On Day Of Or Day After Procedure"

Encounter With Principal Diagnosis Of Mental Disorder Or Stroke

  VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter
    where exists ( QualifyingEncounter.diagnoses EncounterDiagnoses
        where EncounterDiagnoses.rank = 1
          and ( EncounterDiagnoses.code in "Mental Health Diagnoses"
              or EncounterDiagnoses.code in "Hemorrhagic Stroke"
              or EncounterDiagnoses.code in "Ischemic Stroke"
          )
    )

Encounter With Principal Procedure Of Selected Surgery

  VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter
    with ( "Selected Surgery" Procedure
      where Procedure.rank = 1 ) SelectedProcedure
      such that Global."NormalizeInterval" ( SelectedProcedure.relevantDatetime, SelectedProcedure.relevantPeriod ) during QualifyingEncounter.relevantPeriod

Encounter With Prior Or Present Diagnosis Of Atrial Fibrillation Or Prior Diagnosis Of VTE

  ( VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter
      with ["Diagnosis": "Atrial Fibrillation or Flutter"] AtrialFibrillation
        such that AtrialFibrillation.prevalencePeriod starts on or before end of QualifyingEncounter.relevantPeriod
  )
    union ( VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter
        where exists ( QualifyingEncounter.diagnoses QualifyingEncounterDiagnoses
            where QualifyingEncounterDiagnoses.code in "Atrial Fibrillation or Flutter"
        )
    )
    union ( VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter
        with ["Diagnosis": "Venous Thromboembolism"] VTEDiagnosis
          such that VTEDiagnosis.prevalencePeriod starts before start of QualifyingEncounter.relevantPeriod
    )

Encounter With Prior Or Present Procedure Of Hip Or Knee Replacement Surgery

  VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter
    with ( ["Procedure, Performed": "Hip Replacement Surgery"]
      union ["Procedure, Performed": "Knee Replacement Surgery"] ) HipKneeProcedure
      such that Global."NormalizeInterval" ( HipKneeProcedure.relevantDatetime, HipKneeProcedure.relevantPeriod ) starts on or before end of QualifyingEncounter.relevantPeriod

Encounter With VTE Prophylaxis Received From Day Of Start Of Hospitalization To Day After Admission Or Procedure

  ( VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter
      with "Pharmacological Or Mechanical VTE Prophylaxis Received" VTEProphylaxis
        such that Global."NormalizeInterval" ( VTEProphylaxis.relevantDatetime, VTEProphylaxis.relevantPeriod ) starts during day of "FromDayOfStartOfHospitalizationToDayAfterAdmission" ( QualifyingEncounter )
  )
    union ( from
        VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter,
        ["Procedure, Performed": "General or Neuraxial Anesthesia"] AnesthesiaProcedure,
        "Pharmacological Or Mechanical VTE Prophylaxis Received" VTEProphylaxis
        where Global."NormalizeInterval" ( AnesthesiaProcedure.relevantDatetime, AnesthesiaProcedure.relevantPeriod ) ends 1 day after day of start of QualifyingEncounter.relevantPeriod
          and Global."NormalizeInterval" ( VTEProphylaxis.relevantDatetime, VTEProphylaxis.relevantPeriod ) starts during day of JC."CalendarDayOfOrDayAfter" ( end of Global."NormalizeInterval" ( AnesthesiaProcedure.relevantDatetime, AnesthesiaProcedure.relevantPeriod ) )
        return QualifyingEncounter
    )

Global.Inpatient Encounter

  ["Encounter, Performed": "Encounter Inpatient"] EncounterInpatient
    where EncounterInpatient.relevantPeriod ends during day of "Measurement Period"

Initial Population

  VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions"

JC.Intervention Comfort Measures

  ["Intervention, Order": "Comfort Measures"]
    union ["Intervention, Performed": "Comfort Measures"]

Low Risk For VTE Or Anticoagulant Administered From Day Of Start Of Hospitalization To Day After Admission

  VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter
    with "Low Risk Indicator For VTE" LowRiskForVTE
      such that LowRiskForVTE.LowRiskDatetime during day of "FromDayOfStartOfHospitalizationToDayAfterAdmission" ( QualifyingEncounter )

Low Risk For VTE Or Anticoagulant Administered On Day Of Or Day After Procedure

  from
    VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter,
    ["Procedure, Performed": "General or Neuraxial Anesthesia"] AnesthesiaProcedure,
    "Low Risk Indicator For VTE" LowRiskForVTE
    where Global."NormalizeInterval" ( AnesthesiaProcedure.relevantDatetime, AnesthesiaProcedure.relevantPeriod ) ends 1 day after day of start of QualifyingEncounter.relevantPeriod
      and LowRiskForVTE.LowRiskDatetime during day of JC."CalendarDayOfOrDayAfter" ( end of Global."NormalizeInterval" ( AnesthesiaProcedure.relevantDatetime, AnesthesiaProcedure.relevantPeriod ) )
    return QualifyingEncounter

Low Risk Indicator For VTE

  /*The variable "LowRiskDatetime" is to hold VTE Risk Assessment relevant dateTime, INR Laboratory Test result dateTime, and Anticoagulant Medication administration start dateTime.*/
  
  ( ["Assessment, Performed": "Risk for venous thromboembolism"] VTERiskAssessment
      where VTERiskAssessment.result in "Low Risk"
      return {
        id: VTERiskAssessment.id,
        LowRiskDatetime: Global."EarliestOf" ( VTERiskAssessment.relevantDatetime, VTERiskAssessment.relevantPeriod )
      }
  )
    union ( ["Laboratory Test, Performed": "INR"] INRLabTest
        where INRLabTest.result > 3.0
        return {
          id: INRLabTest.id,
          LowRiskDatetime: INRLabTest.resultDatetime
        }
    )
    union ( ( ( ["Medication, Administered": "Unfractionated Heparin"] UnfractionatedHeparin
          where UnfractionatedHeparin.route in "Intravenous route"
      )
        union ["Medication, Administered": "Direct Thrombin Inhibitor"]
        union ["Medication, Administered": "Glycoprotein IIb IIIa Inhibitors"] ) AnticoagulantMedication
        return {
          id: AnticoagulantMedication.id,
          LowRiskDatetime: start of Global."NormalizeInterval" ( AnticoagulantMedication.relevantDatetime, AnticoagulantMedication.relevantPeriod )
        }
    )

No Mechanical Or Pharmacological VTE Prophylaxis Due To Patient Refusal

  ( "No VTE Prophylaxis Medication Administered Or Ordered"
    union "No Mechanical VTE Prophylaxis Performed Or Ordered" ) NoVTEProphylaxis
    where NoVTEProphylaxis.negationRationale in "Patient Refusal"

No Mechanical VTE Prophylaxis Due To Medical Reason From Day Of Start Of Hospitalization To Day After Admission

  VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter
    with "No Mechanical VTE Prophylaxis Performed Or Ordered" NoMechanicalProphylaxis
      such that NoMechanicalProphylaxis.negationRationale in "Medical Reason For Not Providing Treatment"
        and NoMechanicalProphylaxis.authorDatetime during day of "FromDayOfStartOfHospitalizationToDayAfterAdmission" ( QualifyingEncounter )

No Mechanical VTE Prophylaxis Due To Medical Reason On Day Of Or Day After Procedure

  from
    VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter,
    ["Procedure, Performed": "General or Neuraxial Anesthesia"] AnesthesiaProcedure,
    "No Mechanical VTE Prophylaxis Performed Or Ordered" NoMechanicalProphylaxis
    where NoMechanicalProphylaxis.negationRationale in "Medical Reason For Not Providing Treatment"
      and Global."NormalizeInterval" ( AnesthesiaProcedure.relevantDatetime, AnesthesiaProcedure.relevantPeriod ) ends 1 day after day of start of QualifyingEncounter.relevantPeriod
      and NoMechanicalProphylaxis.authorDatetime during day of JC."CalendarDayOfOrDayAfter" ( end of Global."NormalizeInterval" ( AnesthesiaProcedure.relevantDatetime, AnesthesiaProcedure.relevantPeriod ) )
    return QualifyingEncounter

No Mechanical VTE Prophylaxis Performed Or Ordered

  ["Procedure, Not Performed": "Application of Intermittent Pneumatic Compression Devices"]
    union ["Procedure, Not Performed": "Application of Venous Foot Pumps"]
    union ["Procedure, Not Performed": "Application of Graduated Compression Stockings"]
    union ["Device, Not Ordered": "Intermittent pneumatic compression devices"]
    union ["Device, Not Ordered": "Venous foot pumps"]
    union ["Device, Not Ordered": "Graduated compression stockings"]

No VTE Prophylaxis Due To Patient Refusal From Day Of Start Of Hospitalization To Day After Admission

  VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter
    with "No Mechanical Or Pharmacological VTE Prophylaxis Due To Patient Refusal" PatientRefusal
      such that PatientRefusal.authorDatetime during day of "FromDayOfStartOfHospitalizationToDayAfterAdmission" ( QualifyingEncounter )

No VTE Prophylaxis Due To Patient Refusal On Day Of Or Day After Procedure

  from
    VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter,
    ["Procedure, Performed": "General or Neuraxial Anesthesia"] AnesthesiaProcedure,
    "No Mechanical Or Pharmacological VTE Prophylaxis Due To Patient Refusal" PatientRefusal
    where Global."NormalizeInterval" ( AnesthesiaProcedure.relevantDatetime, AnesthesiaProcedure.relevantPeriod ) ends 1 day after day of start of QualifyingEncounter.relevantPeriod
      and PatientRefusal.authorDatetime during day of JC."CalendarDayOfOrDayAfter" ( end of Global."NormalizeInterval" ( AnesthesiaProcedure.relevantDatetime, AnesthesiaProcedure.relevantPeriod ) )
    return QualifyingEncounter

No VTE Prophylaxis Medication Administered Or Ordered

  ["Medication, Not Administered": "Low Dose Unfractionated Heparin for VTE Prophylaxis"]
    union ["Medication, Not Administered": "Low Molecular Weight Heparin for VTE Prophylaxis"]
    union ["Medication, Not Administered": "Injectable Factor Xa Inhibitor for VTE Prophylaxis"]
    union ["Medication, Not Administered": "Warfarin"]
    union ["Medication, Not Administered": "Rivaroxaban for VTE Prophylaxis"]
    union ["Medication, Not Ordered": "Low Dose Unfractionated Heparin for VTE Prophylaxis"]
    union ["Medication, Not Ordered": "Low Molecular Weight Heparin for VTE Prophylaxis"]
    union ["Medication, Not Ordered": "Injectable Factor Xa Inhibitor for VTE Prophylaxis"]
    union ["Medication, Not Ordered": "Warfarin"]
    union ["Medication, Not Ordered": "Rivaroxaban for VTE Prophylaxis"]

No VTE Prophylaxis Medication Due To Medical Reason From Day Of Start Of Hospitalization To Day After Admission

  VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter
    with "No VTE Prophylaxis Medication Administered Or Ordered" NoVTEMedication
      such that NoVTEMedication.negationRationale in "Medical Reason For Not Providing Treatment"
        and NoVTEMedication.authorDatetime during day of "FromDayOfStartOfHospitalizationToDayAfterAdmission" ( QualifyingEncounter )

No VTE Prophylaxis Medication Due To Medical Reason On Day Of Or Day After Procedure

  from
    VTE."Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions" QualifyingEncounter,
    ["Procedure, Performed": "General or Neuraxial Anesthesia"] AnesthesiaProcedure,
    "No VTE Prophylaxis Medication Administered Or Ordered" NoVTEMedication
    where NoVTEMedication.negationRationale in "Medical Reason For Not Providing Treatment"
      and Global."NormalizeInterval" ( AnesthesiaProcedure.relevantDatetime, AnesthesiaProcedure.relevantPeriod ) ends 1 day after day of start of QualifyingEncounter.relevantPeriod
      and NoVTEMedication.authorDatetime during day of JC."CalendarDayOfOrDayAfter" ( end of Global."NormalizeInterval" ( AnesthesiaProcedure.relevantDatetime, AnesthesiaProcedure.relevantPeriod ) )
    return QualifyingEncounter

Numerator

  "Encounter With VTE Prophylaxis Received From Day Of Start Of Hospitalization To Day After Admission Or Procedure"
    union ( "Encounter With Medication Oral Factor Xa Inhibitor Administered On Day Of Or Day After Admission Or Procedure"
        intersect ( "Encounter With Prior Or Present Diagnosis Of Atrial Fibrillation Or Prior Diagnosis Of VTE"
            union "Encounter With Prior Or Present Procedure Of Hip Or Knee Replacement Surgery"
        )
    )
    union "Encounter With Low Risk For VTE Or Anticoagulant Administered"
    union "Encounter With No VTE Prophylaxis Due To Medical Reason"
    union "Encounter With No VTE Prophylaxis Due To Patient Refusal"

Pharmacological Or Mechanical VTE Prophylaxis Received

  ( ["Medication, Administered": "Low Dose Unfractionated Heparin for VTE Prophylaxis"] VTEMedication
      where VTEMedication.route in "Subcutaneous route"
  )
    union ["Medication, Administered": "Low Molecular Weight Heparin for VTE Prophylaxis"]
    union ["Medication, Administered": "Injectable Factor Xa Inhibitor for VTE Prophylaxis"]
    union ["Medication, Administered": "Warfarin"]
    union ["Medication, Administered": "Rivaroxaban for VTE Prophylaxis"]
    union ["Procedure, Performed": "Application of Intermittent Pneumatic Compression Devices"]
    union ["Procedure, Performed": "Application of Venous Foot Pumps"]
    union ["Procedure, Performed": "Application of Graduated Compression Stockings"]

SDE Ethnicity

  ["Patient Characteristic Ethnicity": "Ethnicity"]

SDE Payer

  ["Patient Characteristic Payer": "Payer Type"]

SDE Race

  ["Patient Characteristic Race": "Race"]

SDE Sex

  ["Patient Characteristic Sex": "Federal Administrative Sex"]

Selected Surgery

  ["Procedure, Performed": "General Surgery"]
    union ["Procedure, Performed": "Gynecological Surgery"]
    union ["Procedure, Performed": "Hip Fracture Surgery"]
    union ["Procedure, Performed": "Hip Replacement Surgery"]
    union ["Procedure, Performed": "Intracranial Neurosurgery"]
    union ["Procedure, Performed": "Knee Replacement Surgery"]
    union ["Procedure, Performed": "Urological Surgery"]

VTE.Admission Without VTE Or Obstetrical Conditions

  Global."Inpatient Encounter" InpatientEncounter
    where not ( exists ( InpatientEncounter.diagnoses EncounterDiagnoses
          where ( EncounterDiagnoses.code in "Obstetrical or Pregnancy Related Conditions"
              or EncounterDiagnoses.code in "Venous Thromboembolism"
              or EncounterDiagnoses.code in "Obstetrics VTE"
          )
      )
    )

VTE.Encounter With Age Range And Without VTE Diagnosis Or Obstetrical Conditions

  "Admission Without VTE Or Obstetrical Conditions" EncounterWithoutConditions
    where AgeInYearsAt(date from start of EncounterWithoutConditions.relevantPeriod)>= 18

FromDayOfStartOfHospitalizationToDayAfterAdmission(Encounter "Encounter, Performed")

  Interval[date from ( start of Global."HospitalizationWithObservation" ( Encounter ) ), date from ( start of Encounter.relevantPeriod ) + 1 day]

Global.Earliest(period Interval<DateTime>)

  if ( HasStart(period)) then start of period 
    else 
  end of period

Global.EarliestOf(pointInTime DateTime, period Interval<DateTime>)
- - Earliest(NormalizeInterval(pointInTime, period))

Global.HasStart(period Interval<DateTime>)

  not ( start of period is null
      or start of period = minimum DateTime
  )

Global.HospitalizationWithObservation(Encounter "Encounter, Performed")

  Encounter Visit
  	let ObsVisit: Last(["Encounter, Performed": "Observation Services"] LastObs
  			where LastObs.relevantPeriod ends 1 hour or less on or before start of Visit.relevantPeriod
  			sort by 
  			end of relevantPeriod
  	),
  	VisitStart: Coalesce(start of ObsVisit.relevantPeriod, start of Visit.relevantPeriod),
  	EDVisit: Last(["Encounter, Performed": "Emergency Department Visit"] LastED
  			where LastED.relevantPeriod ends 1 hour or less on or before VisitStart
  			sort by 
  			end of relevantPeriod
  	)
  	return Interval[Coalesce(start of EDVisit.relevantPeriod, VisitStart), 
  	end of Visit.relevantPeriod]

Global.LengthInDays(Value Interval<DateTime>)

  difference in days between start of Value and end of Value

Global.NormalizeInterval(pointInTime DateTime, period Interval<DateTime>)

  if pointInTime is not null then Interval[pointInTime, pointInTime]
    else if period is not null then period 
    else null as Interval<DateTime>

JC.CalendarDayOfOrDayAfter(StartValue DateTime)

  Interval[date from StartValue , date from  StartValue + 1 day]

code "Risk for venous thromboembolism" ("LOINC Code (72136-5)")
valueset "Application of Graduated Compression Stockings" (2.16.840.1.113762.1.4.1110.66)
valueset "Application of Intermittent Pneumatic Compression Devices" (2.16.840.1.113762.1.4.1110.65)
valueset "Application of Venous Foot Pumps" (2.16.840.1.113762.1.4.1110.64)
valueset "Atrial Fibrillation or Flutter" (2.16.840.1.113883.3.117.1.7.1.202)
valueset "Comfort Measures" (1.3.6.1.4.1.33895.1.3.0.45)
valueset "Direct Thrombin Inhibitor" (2.16.840.1.113883.3.117.1.7.1.205)
valueset "Emergency Department Visit" (2.16.840.1.113883.3.117.1.7.1.292)
valueset "Encounter Inpatient" (2.16.840.1.113883.3.666.5.307)
valueset "Ethnicity" (2.16.840.1.114222.4.11.837)
valueset "Federal Administrative Sex" (2.16.840.1.113762.1.4.1021.121)
valueset "General or Neuraxial Anesthesia" (2.16.840.1.113883.3.666.5.1743)
valueset "General Surgery" (2.16.840.1.113883.3.117.1.7.1.255)
valueset "Glycoprotein IIb IIIa Inhibitors" (2.16.840.1.113762.1.4.1045.41)
valueset "Graduated compression stockings" (2.16.840.1.113883.3.117.1.7.1.256)
valueset "Gynecological Surgery" (2.16.840.1.113883.3.117.1.7.1.257)
valueset "Hemorrhagic Stroke" (2.16.840.1.113883.3.117.1.7.1.212)
valueset "Hip Fracture Surgery" (2.16.840.1.113883.3.117.1.7.1.258)
valueset "Hip Replacement Surgery" (2.16.840.1.113883.3.117.1.7.1.259)
valueset "Injectable Factor Xa Inhibitor for VTE Prophylaxis" (2.16.840.1.113883.3.117.1.7.1.211)
valueset "INR" (2.16.840.1.113883.3.117.1.7.1.213)
valueset "Intensive Care Unit" (2.16.840.1.113762.1.4.1029.206)
valueset "Intermittent pneumatic compression devices" (2.16.840.1.113883.3.117.1.7.1.214)
valueset "Intracranial Neurosurgery" (2.16.840.1.113883.3.117.1.7.1.260)
valueset "Intravenous route" (2.16.840.1.113883.3.117.1.7.1.222)
valueset "Ischemic Stroke" (2.16.840.1.113883.3.117.1.7.1.247)
valueset "Knee Replacement Surgery" (2.16.840.1.113883.3.117.1.7.1.261)
valueset "Low Dose Unfractionated Heparin for VTE Prophylaxis" (2.16.840.1.113762.1.4.1045.39)
valueset "Low Molecular Weight Heparin for VTE Prophylaxis" (2.16.840.1.113883.3.117.1.7.1.219)
valueset "Low Risk" (2.16.840.1.113883.3.117.1.7.1.400)
valueset "Medical Reason For Not Providing Treatment" (2.16.840.1.113883.3.117.1.7.1.473)
valueset "Mental Health Diagnoses" (2.16.840.1.113883.3.464.1003.105.12.1004)
valueset "Observation Services" (2.16.840.1.113762.1.4.1111.143)
valueset "Obstetrical or Pregnancy Related Conditions" (2.16.840.1.113883.3.117.1.7.1.263)
valueset "Obstetrics VTE" (2.16.840.1.113883.3.117.1.7.1.264)
valueset "Oral Factor Xa Inhibitor for VTE Prophylaxis or VTE Treatment" (2.16.840.1.113883.3.117.1.7.1.134)
valueset "Patient Refusal" (2.16.840.1.113883.3.117.1.7.1.93)
valueset "Payer Type" (2.16.840.1.114222.4.11.3591)
valueset "Race" (2.16.840.1.114222.4.11.836)
valueset "Rivaroxaban for VTE Prophylaxis" (2.16.840.1.113762.1.4.1110.50)
valueset "Subcutaneous route" (2.16.840.1.113883.3.117.1.7.1.223)
valueset "Unfractionated Heparin" (2.16.840.1.113883.3.117.1.7.1.218)
valueset "Urological Surgery" (2.16.840.1.113883.3.117.1.7.1.272)
valueset "Venous foot pumps" (2.16.840.1.113883.3.117.1.7.1.230)
valueset "Venous Thromboembolism" (2.16.840.1.113883.3.117.1.7.1.279)
valueset "Warfarin" (2.16.840.1.113883.3.117.1.7.1.232)

"Assessment, Performed: Risk for venous thromboembolism" using "Risk for venous thromboembolism (LOINC Code 72136-5)"
"Device, Not Ordered: Graduated compression stockings" using "Graduated compression stockings (2.16.840.1.113883.3.117.1.7.1.256)"
"Device, Not Ordered: Intermittent pneumatic compression devices" using "Intermittent pneumatic compression devices (2.16.840.1.113883.3.117.1.7.1.214)"
"Device, Not Ordered: Venous foot pumps" using "Venous foot pumps (2.16.840.1.113883.3.117.1.7.1.230)"
"Diagnosis: Atrial Fibrillation or Flutter" using "Atrial Fibrillation or Flutter (2.16.840.1.113883.3.117.1.7.1.202)"
"Diagnosis: Venous Thromboembolism" using "Venous Thromboembolism (2.16.840.1.113883.3.117.1.7.1.279)"
"Encounter, Performed: Emergency Department Visit" using "Emergency Department Visit (2.16.840.1.113883.3.117.1.7.1.292)"
"Encounter, Performed: Encounter Inpatient" using "Encounter Inpatient (2.16.840.1.113883.3.666.5.307)"
"Encounter, Performed: Observation Services" using "Observation Services (2.16.840.1.113762.1.4.1111.143)"
"Intervention, Order: Comfort Measures" using "Comfort Measures (1.3.6.1.4.1.33895.1.3.0.45)"
"Intervention, Performed: Comfort Measures" using "Comfort Measures (1.3.6.1.4.1.33895.1.3.0.45)"
"Laboratory Test, Performed: INR" using "INR (2.16.840.1.113883.3.117.1.7.1.213)"
"Medication, Administered: Direct Thrombin Inhibitor" using "Direct Thrombin Inhibitor (2.16.840.1.113883.3.117.1.7.1.205)"
"Medication, Administered: Glycoprotein IIb IIIa Inhibitors" using "Glycoprotein IIb IIIa Inhibitors (2.16.840.1.113762.1.4.1045.41)"
"Medication, Administered: Injectable Factor Xa Inhibitor for VTE Prophylaxis" using "Injectable Factor Xa Inhibitor for VTE Prophylaxis (2.16.840.1.113883.3.117.1.7.1.211)"
"Medication, Administered: Low Dose Unfractionated Heparin for VTE Prophylaxis" using "Low Dose Unfractionated Heparin for VTE Prophylaxis (2.16.840.1.113762.1.4.1045.39)"
"Medication, Administered: Low Molecular Weight Heparin for VTE Prophylaxis" using "Low Molecular Weight Heparin for VTE Prophylaxis (2.16.840.1.113883.3.117.1.7.1.219)"
"Medication, Administered: Oral Factor Xa Inhibitor for VTE Prophylaxis or VTE Treatment" using "Oral Factor Xa Inhibitor for VTE Prophylaxis or VTE Treatment (2.16.840.1.113883.3.117.1.7.1.134)"
"Medication, Administered: Rivaroxaban for VTE Prophylaxis" using "Rivaroxaban for VTE Prophylaxis (2.16.840.1.113762.1.4.1110.50)"
"Medication, Administered: Unfractionated Heparin" using "Unfractionated Heparin (2.16.840.1.113883.3.117.1.7.1.218)"
"Medication, Administered: Warfarin" using "Warfarin (2.16.840.1.113883.3.117.1.7.1.232)"
"Medication, Not Administered: Injectable Factor Xa Inhibitor for VTE Prophylaxis" using "Injectable Factor Xa Inhibitor for VTE Prophylaxis (2.16.840.1.113883.3.117.1.7.1.211)"
"Medication, Not Administered: Low Dose Unfractionated Heparin for VTE Prophylaxis" using "Low Dose Unfractionated Heparin for VTE Prophylaxis (2.16.840.1.113762.1.4.1045.39)"
"Medication, Not Administered: Low Molecular Weight Heparin for VTE Prophylaxis" using "Low Molecular Weight Heparin for VTE Prophylaxis (2.16.840.1.113883.3.117.1.7.1.219)"
"Medication, Not Administered: Rivaroxaban for VTE Prophylaxis" using "Rivaroxaban for VTE Prophylaxis (2.16.840.1.113762.1.4.1110.50)"
"Medication, Not Administered: Warfarin" using "Warfarin (2.16.840.1.113883.3.117.1.7.1.232)"
"Medication, Not Ordered: Injectable Factor Xa Inhibitor for VTE Prophylaxis" using "Injectable Factor Xa Inhibitor for VTE Prophylaxis (2.16.840.1.113883.3.117.1.7.1.211)"
"Medication, Not Ordered: Low Dose Unfractionated Heparin for VTE Prophylaxis" using "Low Dose Unfractionated Heparin for VTE Prophylaxis (2.16.840.1.113762.1.4.1045.39)"
"Medication, Not Ordered: Low Molecular Weight Heparin for VTE Prophylaxis" using "Low Molecular Weight Heparin for VTE Prophylaxis (2.16.840.1.113883.3.117.1.7.1.219)"
"Medication, Not Ordered: Rivaroxaban for VTE Prophylaxis" using "Rivaroxaban for VTE Prophylaxis (2.16.840.1.113762.1.4.1110.50)"
"Medication, Not Ordered: Warfarin" using "Warfarin (2.16.840.1.113883.3.117.1.7.1.232)"
"Patient Characteristic Ethnicity: Ethnicity" using "Ethnicity (2.16.840.1.114222.4.11.837)"
"Patient Characteristic Payer: Payer Type" using "Payer Type (2.16.840.1.114222.4.11.3591)"
"Patient Characteristic Race: Race" using "Race (2.16.840.1.114222.4.11.836)"
"Patient Characteristic Sex: Federal Administrative Sex" using "Federal Administrative Sex (2.16.840.1.113762.1.4.1021.121)"
"Procedure, Not Performed: Application of Graduated Compression Stockings" using "Application of Graduated Compression Stockings (2.16.840.1.113762.1.4.1110.66)"
"Procedure, Not Performed: Application of Intermittent Pneumatic Compression Devices" using "Application of Intermittent Pneumatic Compression Devices (2.16.840.1.113762.1.4.1110.65)"
"Procedure, Not Performed: Application of Venous Foot Pumps" using "Application of Venous Foot Pumps (2.16.840.1.113762.1.4.1110.64)"
"Procedure, Performed: Application of Graduated Compression Stockings" using "Application of Graduated Compression Stockings (2.16.840.1.113762.1.4.1110.66)"
"Procedure, Performed: Application of Intermittent Pneumatic Compression Devices" using "Application of Intermittent Pneumatic Compression Devices (2.16.840.1.113762.1.4.1110.65)"
"Procedure, Performed: Application of Venous Foot Pumps" using "Application of Venous Foot Pumps (2.16.840.1.113762.1.4.1110.64)"
"Procedure, Performed: General or Neuraxial Anesthesia" using "General or Neuraxial Anesthesia (2.16.840.1.113883.3.666.5.1743)"
"Procedure, Performed: General Surgery" using "General Surgery (2.16.840.1.113883.3.117.1.7.1.255)"
"Procedure, Performed: Gynecological Surgery" using "Gynecological Surgery (2.16.840.1.113883.3.117.1.7.1.257)"
"Procedure, Performed: Hip Fracture Surgery" using "Hip Fracture Surgery (2.16.840.1.113883.3.117.1.7.1.258)"
"Procedure, Performed: Hip Replacement Surgery" using "Hip Replacement Surgery (2.16.840.1.113883.3.117.1.7.1.259)"
"Procedure, Performed: Intracranial Neurosurgery" using "Intracranial Neurosurgery (2.16.840.1.113883.3.117.1.7.1.260)"
"Procedure, Performed: Knee Replacement Surgery" using "Knee Replacement Surgery (2.16.840.1.113883.3.117.1.7.1.261)"
"Procedure, Performed: Urological Surgery" using "Urological Surgery (2.16.840.1.113883.3.117.1.7.1.272)"

  ["Patient Characteristic Ethnicity": "Ethnicity"]

  ["Patient Characteristic Payer": "Payer Type"]

  ["Patient Characteristic Race": "Race"]

  ["Patient Characteristic Sex": "Federal Administrative Sex"]

eMeasure Venous Thromboembolism (eVTE)

Venous Thromboembolism Prophylaxis

Table of Contents

Population Criteria

Definitions

Functions

Terminology

Data Criteria (QDM Data Elements)

Supplemental Data Elements

Risk Adjustment Variables