| Format/Length: | an6 | 
| HES Item: | |
| National Codes: | See Accident and Emergency Diagnosis Tables | 
| Default Codes: | 
Notes:
ACCIDENT AND EMERGENCY DIAGNOSIS - FIRST is the same as attribute ACCIDENT AND EMERGENCY DIAGNOSIS.
ACCIDENT AND EMERGENCY DIAGNOSIS - FIRST is the first recorded PATIENT DIAGNOSIS for an Accident and Emergency Attendance.
ACCIDENT AND EMERGENCY DIAGNOSIS - FIRST is required for recording within an Accident and Emergency Attendance Commissioning Data Set.
For Commissioning Data Set and XML schema version 6 onwards, ACCIDENT AND EMERGENCY DIAGNOSIS - FIRST will be recognised as Primary Diagnosis (Accident and Emergency).
This data element is also known by these names:
| Context | Alias | 
|---|---|
| schema | PRIMARY DIAGNOSIS (ACCIDENT AND EMERGENCY) | 
| plural | ACCIDENT AND EMERGENCY DIAGNOSIS - FIRST |