Status: current, Not sufficiently defined by necessary conditions definition status. Date: 31-Jan 2002. Module: SNOMED CT core module
Descriptions:
| Id | Description | Lang | Type | Status | Case? | Module | 
| 134831018 | Twin brother | en | Synonym | Active | Entire term case insensitive | SNOMED CT core module | 
| 822529017 | Twin brother (person) | en | Fully specified name | Active | Entire term case insensitive | SNOMED CT core module | 
| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Twin brother | Is a | Twin sibling | true | Inferred relationship | Existential restriction modifier | ||
| Twin brother | Is a | Brother | false | Inferred relationship | Existential restriction modifier | ||
| Twin brother | Is a | Natural brother | true | Inferred relationship | Existential restriction modifier | 
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Identical twin brother | Is a | True | Twin brother | Inferred relationship | Existential restriction modifier | |
| Fraternal twin brother | Is a | True | Twin brother | Inferred relationship | Existential restriction modifier | 
This concept is not in any reference sets