Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2002. Module: SNOMED CT core
Descriptions:
| Id | Description | Lang | Type | Status | Case? | Module |
| 19561010 | Twin sibling | en | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core |
| 644297017 | Twin sibling (person) | en | Fully specified name | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core |
| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values |
| Twin sibling | Is a | Natural sibling | true | Inferred relationship | Some |
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group |
| Identical twin sibling | Is a | True | Twin sibling | Inferred relationship | Some | |
| Fraternal twin sibling | Is a | True | Twin sibling | Inferred relationship | Some | |
| Identical twin | Is a | True | Twin sibling | Inferred relationship | Some | |
| Fraternal twin (person) | Is a | True | Twin sibling | Inferred relationship | Some | |
| Twin sister | Is a | True | Twin sibling | Inferred relationship | Some | |
| Twin brother | Is a | True | Twin sibling | Inferred relationship | Some |
This concept is not in any reference sets