GlobalStatementValues
The set of values for the statement about the absence or exclusion.
This value set has an inline code system http://hl7.org/fhir/global-statement-values, which defines the following codes:
| Code | Display | Definition |
| 01 | None known | No information about taking any medication is known. |
| 02 | Not asked | No information about taking any medication is available because the patient was not asked or not able to be asked. |
| 03 | None supplied | No information about taking any medication is supplied. |