Status: current, Sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2009. Module: SNOMED CT core
Descriptions:
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group |
| H/O: tracheostomy | Is a | True | History of surgical procedure on trachea (situation) | Inferred relationship | Some | |
| History of tracheoesophageal fistula (situation) | Is a | False | History of surgical procedure on trachea (situation) | Inferred relationship | Some | |
| History of repair of tracheoesophageal fistula (situation) | Is a | True | History of surgical procedure on trachea (situation) | Inferred relationship | Some |
This concept is not in any reference sets