Properties
| Name | Required | Type | Description |
|---|---|---|---|
| id | No | string | Unique id for inter-element referencing |
| extension | No | Extension[] | Additional content defined by implementations |
| description | No | string | Natural language description of the condition |
| name | No | id | Short name assigned to expression for reuse |
| language | Yes | code | text/cql / text/fhirpath / application/x-fhir-query / etc. |
| expression | No | string | Expression in specified language |
| reference | No | uri | Where the expression is found |

