The type of CLINICAL TERMINOLOGY CODE used for the observation.
National Codes:
| 01 | Read Coded Clinical Terms Version 2 |
| 02 | Read Coded Clinical Terms Version 3 (CTV3) |
| 03 | Systematized Nomenclature of Medicine Clinical Terms (SNOMED CT) |
This attribute is also known by these names:
| Context | Alias |
|---|---|
| plural | OBSERVATION SCHEMES IN USE |