Value | Code Name | Code | Code System | Code Description |
---|---|---|---|---|
Unknown | Not known, observed, recorded; or reported as unknown by the data contributor. C17998 | |||
N/A or not reported | Determination of a value is not relevant in the current context.:An article used to connect words, phrases, or clauses representing alternatives; used to connect alternative terms for the same thing; used in correlation; used to correct or rephrase what was previously said; otherwise.:Not provided or available. C48660:C37998:C43234(Primary) |