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"Allergy Intolerance"

QDM Datatype

Performance/Reporting Period
2021
QDM Datatype (QDM Version 5.5 Guidance Update):

Data elements that meet criteria using this datatype should document the allergy or intolerance and its corresponding value set.

Timing:

  • The prevalence period references the time from the onset date to the abatement date. Often an abatement date is not present as allergy or intolerance is ongoing.
  • The author dateTime references the recorded time.
QDM Category (QDM Version 5.5 Guidance Update)

Allergy/Intolerance

Allergy is used to address immune-mediated reactions to a substance such as type 1 hypersensitivity reactions, other allergy-like reactions, including pseudo-allergy. Intolerance is a record of a clinical assessment of a propensity, or a potential risk to an individual, to have a non-immune mediated adverse reaction on future exposure to the specified substance or class of substance.
QDM Attributes

authorDateTime

The time the data element was entered into the clinical software. Note, some datatypes include both relevant dateTime and author dateTime attributes. When both are present, author dateTime is included to accommodate negation rationale.

The author dateTime addresses when an activity is documented. Documentation can occur at the beginning, during, at the end, or subsequent to the end of the activity. The author dateTime should be used only if the relevantPeriod cannot be obtained or to represent the time negation rationale is documented.

Note: negation rationale indicates a one-time documentation of a reason an activity is not performed. Negation of QDM datatype related actions for a reason always use the author dateTime attribute to reference timing and must not use relevantPeriod.

prevalencePeriod

Prevalance Period is the time from onset dateTime to abatement dateTime.

severity

Indicates the intensity of the specified datatype (e.g., persistent, moderate, or severe).

type

The characterization of the reaction (e.g., hypersensitivity, rash, gastroenteric symptoms, etc.).
Last Updated: Jul 08, 2021