| Format/length: | an6 |
| HES item: | DIAG_1 for Patient Diagnosis CENDIAG1 for Patient Diagnosis on Psychiatric Census Date for the Psychiatric Census Record: Additional Data Fields |
| National Codes: | |
| Default Codes: |
Notes:
See DIAGNOSTIC CODING for details on coding and PRIMARY DIAGNOSES for the standardised definition of primary diagnosis.
This data element is also known by these names:
| Context | Alias |
|---|---|
| plural | PRIMARY (ICD-10) |