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 | 
| 166736012 | Blood group antigen A>1< | en | Synonym (core metadata concept) | Active | Only initial character case insensitive (core metadata concept) | SNOMED CT core | 
| 201875015 | ABO4 (ISBT symbol) | en | Synonym (core metadata concept) | Active | Entire term case sensitive (core metadata concept) | SNOMED CT core | 
| 260838013 | A1 antigen | en | Synonym (core metadata concept) | Active | Entire term case sensitive (core metadata concept) | SNOMED CT core | 
| 549570014 | Blood group antigen A>1< (substance) | en | Fully specified name | Active | Only initial character case insensitive (core metadata concept) | SNOMED CT core | 
| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Blood group antigen A>1< | Is a | Antigen in ABO blood group system | true | Inferred relationship | Some | 
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Blood group typing A>1< | Has measured component | False | Blood group antigen A>1< | Inferred relationship | Some | |
| Blood group typing A>1< | Component | True | Blood group antigen A>1< | Inferred relationship | Some | 1 | 
This concept is not in any reference sets