Value | Code Name | Code | Code System | Code Description |
---|---|---|---|---|
No | No | C49487 | NCI Thesaurus | The non-affirmative response to a question. |
Unknown | Unknown | C17998 | NCI Thesaurus | Not known, not observed, not recorded, or refused. |
Yes | Yes | C49488 | NCI Thesaurus | The affirmative response to a question. |