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 |
| Petroleum | est un(e) (attribut) | Oil | true | Inferred relationship | Some | ||
| Petroleum | est un(e) (attribut) | Coal AND/OR petroleum agent (substance) | false | Inferred relationship | Some | ||
| Petroleum | est un(e) (attribut) | Coal and petroleum agent (substance) | true | Inferred relationship | Some |
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group |
| Naphtha | est un(e) (attribut) | False | Petroleum | Inferred relationship | Some |
This concept is not in any reference sets