Status: current, Not sufficiently defined by necessary conditions definition status. Date: 31-Jul 2003. Module: SNOMED CT core module
Descriptions:
| Id | Description | Lang | Type | Status | Case? | Module | 
| 1764699014 | Past medical history unknown (context-dependent category) | en | Fully specified name | Inactive | Only initial character case insensitive | SNOMED CT core module | 
| 1776597015 | Past medical history unknown | en | Synonym | Active | Entire term case insensitive | SNOMED CT core module | 
| 2613103014 | Past medical history unknown (situation) | en | Fully specified name | Inactive | Only initial character case insensitive | SNOMED CT core module | 
| 2736280019 | Medical history unknown (situation) | en | Fully specified name | Active | Entire term case insensitive | SNOMED CT core module | 
| 2767917018 | Medical history unknown | en | Synonym | Active | Entire term case insensitive | SNOMED CT core module | 
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Family history of myocardial infarction in male relative of first degree, age unknown | Is a | False | Medical history unknown | Inferred relationship | Existential restriction modifier | |
| Family history of myocardial infarction in female relative of first degree, age unknown | Is a | False | Medical history unknown | Inferred relationship | Existential restriction modifier | |
| Family history of angina in male relative of first degree, age unknown | Is a | False | Medical history unknown | Inferred relationship | Existential restriction modifier | |
| Family history of angina in female relative of first degree, age unknown | Is a | False | Medical history unknown | Inferred relationship | Existential restriction modifier | |
| Unknown recent loss of consciousness | Is a | False | Medical history unknown | Inferred relationship | Existential restriction modifier | 
This concept is not in any reference sets