| Format/Length: | an6 | 
| HES Item: | |
| 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 DIAGNOSES (ICD) | 
