Patient Procedure Data Absent Reason
Context and value of a Data Absent Reason (DAR) indicating why information is missing or not recorded about some or all of a patient's procedures.
If the DAR applies to all procedures (e.g., the patient declined to answer “Did you undergo any procedures?”),then only the DAR Code is populated. All other attributes must be left empty.
If the DAR applies to a specific procedure (for example, the patient declined to answer “Did you have procedure X?”), then DAR Code records the reason (e.g., asked-declined) and the context attribute - Procedure Code - identifies the specific procedure (e.g., procedure X).
When a DAR is specified, this class shall be populated, but Patient Procedure shall not.
When an actual procedure is specified, the Patient Procedure class shall be populated, but this class shall not.
Appears in
Constraints
Unique key(s)
- Patient, Procedure Code if specified, Procedure Category Code if specified
Stereotype(s)
n/a
Attributes
| Attribute | Type | Multiplicity | Attribute note |
|---|---|---|---|
| Procedure Code | Codeable Concept | 0..1 | Uniquely specifies a procedure (e.g., "repair of femoral hernia by Henry approach").
This attribute is mandatory for procedure events.
Value Set: https://fhir.infoway-inforoute.ca/ValueSet/procedurecode
Alternate Value Set: Canadian Classification of Health Interventions (CCI): recommended supporting classification.
https://secure.cihi.ca/estore/productFamily.htm?pf=PFC4851&lang=en&media=0 |
| Procedure Category Code | Codeable Concept | 0..1 | Uniquely specifies a category which classifies the procedure, in particular for searching, sorting, and display purposes (e.g., "Surgical Procedure").
Value Set: To be developed. |
| Procedure Data Absent Reason Code | Codeable Concept | 1 | Uniquely specifies the reason that procedure information is missing or not for a patient (e.g., asked-declined, not-asked, unknown).
Value Set: http://terminology.hl7.org/CodeSystem/data-absent-reason |
Relationships
| From class | From multiplicity | Relationship | To class | To multiplicity |
|---|---|---|---|---|
| Patient Procedure Data Absent Reason | 0..* | has | Clinical Information Life Cycle Event | 0..* |
| Patient Procedure Data Absent Reason | 0..* | documented in | Encounter | 0..1 |
| Patient Procedure Data Absent Reason | 0..* | for | Patient | 1 |
Contact us
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How to cite:
Canadian Institute for Health Information. Patient Procedure Data Absent Reason. Accessed November 02, 2026.
