Status: current, Sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2011. Module: SNOMED CT core
Descriptions:
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group |
| Excision of base of skull in posterior cranial fossa (procedure) | Is a | True | Posterior cranial fossa craniectomy | Inferred relationship | Some | |
| Craniectomy by retromastoid approach (procedure) | Is a | True | Posterior cranial fossa craniectomy | Inferred relationship | Some |
This concept is not in any reference sets