| Format/Length: | n3 |
| HES Item: | |
| National Codes: | |
| Default Codes: | 999 - Not known i.e. date of birth not known and age cannot be estimated |
Notes:
AGE AT CDS ACTIVITY DATE is derived as the number of completed years between the PERSON BIRTH DATE of the PATIENT and the CDS ACTIVITY DATE.
This data element is also known by these names:
| Context | Alias |
|---|---|
| plural | AGES AT CDS ACTIVITY DATES |