Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2002. Module: SNOMED CT core
Descriptions:
| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values |
| Homovanillic acid | Is a | Catecholamine metabolite | true | Inferred relationship | Some | ||
| Homovanillic acid | Is a | Organic acid or organic acid derivative | false | Inferred relationship | Some | ||
| Homovanillic acid | Is a | Organic acid and/or organic acid derivative | true | Inferred relationship | Some |
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group |
| Homovanillic acid measurement (procedure) | Has measured component | False | Homovanillic acid | Inferred relationship | Some | |
| Measurement of homovanillic acid in urine | Has measured component | False | Homovanillic acid | Inferred relationship | Some | |
| Homovanillic acid measurement (procedure) | Component | True | Homovanillic acid | Inferred relationship | Some | 1 |
| Measurement of homovanillic acid in urine | Component | True | Homovanillic acid | Inferred relationship | Some | 2 |
| 24 hour urine homovanillic acid output (procedure) | Component | True | Homovanillic acid | Inferred relationship | Some | 2 |
| 24 hour urine homovanillylmandelic acid output (procedure) | Component | True | Homovanillic acid | Inferred relationship | Some | 2 |
This concept is not in any reference sets