Status: current, Sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2002. Module: SNOMED CT core
Descriptions:
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Acute empyema of frontal sinus | Is a | True | Acute empyema of nasal sinus | Inferred relationship | Some | |
| Acute empyema of sphenoidal sinus | Is a | True | Acute empyema of nasal sinus | Inferred relationship | Some | |
| Acute empyema of ethmoidal sinus | Is a | True | Acute empyema of nasal sinus | Inferred relationship | Some | |
| Acute empyema of maxillary sinus | Is a | True | Acute empyema of nasal sinus | Inferred relationship | Some | 
This concept is not in any reference sets