Status: current, Sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jul 2002. Module: SNOMED CT core
Descriptions:
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group |
| Congenital distichiasis | Is a | True | Accessory eyelid | Inferred relationship | Some | |
| Distichiasis | Is a | False | Accessory eyelid | Inferred relationship | Some | |
| Accessory lacrimal canal | Is a | False | Accessory eyelid | Inferred relationship | Some | |
| Supernumerary canaliculus (disorder) | Is a | False | Accessory eyelid | Inferred relationship | Some | |
| Supernumerary lacrimal punctum | Is a | False | Accessory eyelid | Inferred relationship | Some | |
| Accessory lacrimal canal | Is a | False | Accessory eyelid | Inferred relationship | Some | |
| Supernumerary canaliculus (disorder) | Is a | True | Accessory eyelid | Inferred relationship | Some | |
| Supernumerary lacrimal punctum | Is a | True | Accessory eyelid | Inferred relationship | Some |
This concept is not in any reference sets