| Format/length: | see DATE |
| HES item: | |
| National Codes: | |
| Default Codes: |
Notes:
The date when the SMOKING STATUS was recorded.
OBSERVATION DATE (SMOKING STATUS) is the same as attribute PERSON PROPERTY EFFECTIVE DATE.
This data element is also known by these names:
| Context | Alias |
|---|---|
| plural | OBSERVATION DATES (SMOKING STATUS) |

