["Patient Characteristic, Birthdate": "Birth date"]
Constrained to 'Birth date' LOINC code
"Patient Characteristic Birthdate"
The Patient Characteristic Birthdate data element should document the patient’s date of birth. Timing: The Patient Characteristic, Birthdate is a single point in time representing the date and time of birth. It does not have a start and stop time. Note: Patient Characteristic Birthdate is fixed to LOINC code 21112-8 (Birth date) and therefore cannot be further qualified with a value set.