This wiki has undergone a migration to Confluence found Here
<meta name="googlebot" content="noindex">

Symptom (QDM)

From HL7Wiki
Jump to navigation Jump to search

Back to Harmonization of Health Quality Information Models Page

This QDM to QI Core Mapping for the QDM Datatype "Symptom" was reviewed by the CQI WG on March 30, 2018 based on QDM version 5.3. There is no change in the structure of "Symptom" in QDM version 5.4. QDM version 5.4 includes the guidance, "Note that while many symptoms are entered as findings as part of assessments and, therefore, may not be included in a specific EHR “symptom” section, QDM 5.4 retains the QDM datatype, Symptom, for clarity of expression in the human readable eCQM."

QDM defines Symptom as an indication that a person has a condition or disease. Some examples are headache, fever, fatigue, nausea, vomiting, and pain. Also, symptoms are subjective manifestations of the disease perceived by the patient. As an example to differentiate symptom from finding, the patient’s subjective symptom of fever is distinguished from the temperature (a finding). For a finding, there is either a source of either a temperature-measuring device together with a recorder of the device (electronically) or an individual (healthcare provider, patient, etc.).

  1. Use the Observation resource when a symptom is resolved without long term management, tracking, or when a symptom contributes to the establishment of a condition.
  2. Use Condition when a symptom requires long term management, tracking, or is used as a proxy for a diagnosis or problem that is not yet determined.
  • The QDM User Group will review the use of the Symptom QDM datatype. For now, the mapping below, references symptom as an observation (option 1 above).



QDM Attribute QI Core Metadata Element Comment
Symptom Symptom maps to Observation [Observation.status] Constrain status as “final”
Prevalence Period Observation.effective(x) Observation.effective(x) The time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time".
Severity There is no clear observation severity concept in the FHIR observation resource Consider the value set binding may allow a measure developer to indicate symptom severity as a pre-coordinated concept or set of concepts
Code Observation.code QDM matched to QI Core / FHIR
id QDM matched to QI Core / FHIR
Source Observation.performer QDM matched to QI Core / FHIR