Status: current, Sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2006. Module: SNOMED CT core
Descriptions:
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group |
| Non-sedating antihistamine allergy | Is a | False | Allergy to histamine H1 receptor antagonist (finding) | Inferred relationship | Some | |
| Sedating antihistamine allergy | Is a | False | Allergy to histamine H1 receptor antagonist (finding) | Inferred relationship | Some | |
| Sedating antihistamine allergy | Is a | False | Allergy to histamine H1 receptor antagonist (finding) | Inferred relationship | Some | |
| Allergy to ketotifen (finding) | Is a | True | Allergy to histamine H1 receptor antagonist (finding) | Inferred relationship | Some | |
| Allergy to terfenadine | Is a | True | Allergy to histamine H1 receptor antagonist (finding) | Inferred relationship | Some | |
| Allergy to acrivastine | Is a | True | Allergy to histamine H1 receptor antagonist (finding) | Inferred relationship | Some | |
| Allergy to cetirizine | Is a | True | Allergy to histamine H1 receptor antagonist (finding) | Inferred relationship | Some | |
| Allergy to loratadine (finding) | Is a | True | Allergy to histamine H1 receptor antagonist (finding) | Inferred relationship | Some | |
| Allergy to azelastine | Is a | True | Allergy to histamine H1 receptor antagonist (finding) | Inferred relationship | Some | |
| Allergy to astemizole | Is a | True | Allergy to histamine H1 receptor antagonist (finding) | Inferred relationship | Some | |
| Allergy to mianserin (finding) | Is a | True | Allergy to histamine H1 receptor antagonist (finding) | Inferred relationship | Some | |
| Allergy to zuclopenthixol (finding) | Is a | True | Allergy to histamine H1 receptor antagonist (finding) | Inferred relationship | Some | |
| Allergy to pimozide (finding) | Is a | True | Allergy to histamine H1 receptor antagonist (finding) | Inferred relationship | Some | |
| Allergy to clemastine (finding) | Is a | True | Allergy to histamine H1 receptor antagonist (finding) | Inferred relationship | Some | |
| Allergy to promethazine | Is a | True | Allergy to histamine H1 receptor antagonist (finding) | Inferred relationship | Some | |
| Allergy to cyproheptadine (finding) | Is a | True | Allergy to histamine H1 receptor antagonist (finding) | Inferred relationship | Some | |
| Allergy to pheniramine (finding) | Is a | True | Allergy to histamine H1 receptor antagonist (finding) | Inferred relationship | Some | |
| Allergy to antazoline (finding) | Is a | True | Allergy to histamine H1 receptor antagonist (finding) | Inferred relationship | Some | |
| Allergy to azatadine | Is a | True | Allergy to histamine H1 receptor antagonist (finding) | Inferred relationship | Some | |
| Allergy to meclozine (finding) | Is a | True | Allergy to histamine H1 receptor antagonist (finding) | Inferred relationship | Some |
This concept is not in any reference sets