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 |
| Class Hirudinea - leech (organism) | Is a | Annelid worm | false | Inferred relationship | Some | ||
| Class Hirudinea - leech (organism) | Is a | Phylum Annelida | false | Inferred relationship | Some | ||
| Class Hirudinea - leech (organism) | Is a | Phylum Annelida (organism) | true | Inferred relationship | Some |
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group |
| Myxobdella | Is a | True | Class Hirudinea - leech (organism) | Inferred relationship | Some | |
| Phytobdella | Is a | True | Class Hirudinea - leech (organism) | Inferred relationship | Some | |
| Eupomatus | Is a | True | Class Hirudinea - leech (organism) | Inferred relationship | Some | |
| Lanicides | Is a | True | Class Hirudinea - leech (organism) | Inferred relationship | Some | |
| Protolepsis | Is a | True | Class Hirudinea - leech (organism) | Inferred relationship | Some | |
| Placobdella (organism) | Is a | True | Class Hirudinea - leech (organism) | Inferred relationship | Some | |
| Haemadipsa | Is a | True | Class Hirudinea - leech (organism) | Inferred relationship | Some | |
| Hirudo | Is a | True | Class Hirudinea - leech (organism) | Inferred relationship | Some | |
| Limnatis | Is a | True | Class Hirudinea - leech (organism) | Inferred relationship | Some | |
| Dinobdella | Is a | True | Class Hirudinea - leech (organism) | Inferred relationship | Some | |
| Leech infestation | Causative agent | True | Class Hirudinea - leech (organism) | Inferred relationship | Some | 1 |
| Internal hirudiniasis | Causative agent | True | Class Hirudinea - leech (organism) | Inferred relationship | Some | 1 |
| External hirudiniasis (disorder) | Causative agent | True | Class Hirudinea - leech (organism) | Inferred relationship | Some | 1 |
This concept is not in any reference sets