The QDM UG has recently agree to consolidate Diagnosis, Active, Diagnosis, Inactive, and Diagnosis, Resolved into a single Diagnosis datatype. This same solution should be considered for Symptom.

Symptom is currently represented by four datatypes:

• Symptom, Active
• Symptom, Inactive
• Symptom, Resolved
• Symptom, Assessed

While the first three can be handled the same as Diagnosis, the Symptom, Assessed datatype will have to be discussed further – as it will likely require a different representation (or removal).

UG Accepted Solution

Consolidate active, inactive, and resolved datatypes into one Symptom datatype that contains "onset datetime" and "abatement datetime" attributes (instead of start/stop). The status is determined by the absence or presence of the "abatement datetime" value:

• abatement datetime is absent: the symptom is active
• abatement datetime is present: the symptom is inactive/resolved

In addition, the UG agreed to remove support for the "Symptom, Assessed" datatype.