Status: current, Sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jul 2004. Module: SNOMED CT core
Descriptions:
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Nasal endoscopy with maxillary antrostomy | Is a | False | Maxillary sinusotomy by intranasal approach | Inferred relationship | Some | |
| Inferior meatal antrostomy | Is a | True | Maxillary sinusotomy by intranasal approach | Inferred relationship | Some | |
| Middle meatal antrostomy | Is a | True | Maxillary sinusotomy by intranasal approach | Inferred relationship | Some | |
| Intranasal antrostomy and biopsy of maxillary antrum | Is a | True | Maxillary sinusotomy by intranasal approach | Inferred relationship | Some | |
| Intranasal antrostomy and excision of lesion of maxillary antrum | Is a | True | Maxillary sinusotomy by intranasal approach | Inferred relationship | Some | 
This concept is not in any reference sets