Status: current, Not 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 | 
| Micropapular wheal | Is a | True | Wheal | Inferred relationship | Some | |
| Bullous wheal | Is a | True | Wheal | Inferred relationship | Some | |
| On examination - weals not present | Associated finding | False | Wheal | Inferred relationship | Some | 2 | 
| On examination - weals present | Is a | False | Wheal | Inferred relationship | Some | |
| No wheal on skin | Associated finding | True | Wheal | Inferred relationship | Some | 1 | 
| Symptomatic dermographism (disorder) | Is a | True | Wheal | Inferred relationship | Some | 
This concept is not in any reference sets