| Format/Length: | YYYY-MM | 
| HES Item: | |
| National Codes: | |
| Default Codes: | 
Notes:
The year and month of an event.
References:
The e-GIF version approved for use in NHS England is:
Government Data Standards Catalogue: (GDSC), Version 1.0, Agreed 23 November 2004.
Further information can be found on the Cabinet Office website.
This data element is also known by these names:
| Context | Alias | 
|---|---|
| plural | YEARS AND MONTHS | 

