Observation Data Absent Reason
Captures the reason the observation values are missing or not recorded for an observation.
In detail:
Specifies context and value of a Data Absent Reason (DAR) indicating why information is missing about some observations on a subject.
When a DAR is specified, this class shall be populated, but Observation shall not.
Conversely, when an actual observation (i.e., with a known value) is specified, the Observation class shall be populated, but this class shall not.
In this class, the DAR code, i.e., the attribute Observation Data Absent Reason Code must always be populated.
If the DAR applies to all observations on the subject, then only the DAR Code is populated. All other attributes, which provide context for the DAR, must be left empty.
If the DAR applies to a specific observation code and/or at a specific observation date and time, then one or both of those context attributes (Observation Code, Observation Date Time) must be populated as well. The DAR Code (e.g., asked-declined) then applies only to a particular observation code and/or at a particular observation date/time.
Diagrammes connexes
Contraintes
Clés uniques
- XOR (Patient, Party Group, Organization, Location, Standardized Assessment, Device), Observation Code if specified, Observation Date Time if specified
Stéréotypes
s. o.
Attributs
| Attribut | Type | Multiplicité | Note sur l’attribut |
|---|---|---|---|
| Observation Date Time | Date Time | 0..1 | The date and time when the observation occurred. |
| Observation Code | Codeable Concept | 0..1 | Uniquely specifies what was observed. Sometimes called "observation name".
Value Set: To be developed. |
| Observation Data Absent Reason Code | Codeable Concept | 1 | Uniquely specifies the reason the observation values are missing or not recorded for an observation.
Value Set: http://terminology.hl7.org/CodeSystem/data-absent-reason |
Relations
| Classe d’origine | Multiplicité d’origine | Relation | Classe de destination | Multiplicité de destination |
|---|---|---|---|---|
| Observation Data Absent Reason | 0..* | has | Clinical Information Life Cycle Event | 0..* |
| Observation Data Absent Reason | 0..* | for | Location | 0..1 |
| Observation Data Absent Reason | 0..* | for | Device | 0..1 |
| Observation Data Absent Reason | 0..* | for | Standardized Assessment | 0..1 |
| Observation Data Absent Reason | 0..* | for | Patient | 0..1 |
| Observation Data Absent Reason | 0..* | for | Party Group | 0..1 |
| Observation Data Absent Reason | 0..* | for | Organization | 0..1 |
| Observation Data Absent Reason | 0..* | observation performer | Party Role | 0..1 |
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Comment citer ce contenu:
Institut canadien d’information sur la santé. Observation Data Absent Reason. Consulté le 02 novembre 2026.
