| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Partial thromboplastin time, activated | Is a | Intrinsic coagulation pathway screening | true | Inferred relationship | Existential restriction modifier |  |  | 
| Partial thromboplastin time, activated | Method | Investigation - action | false | Inferred relationship | Existential restriction modifier |  |  | 
| Partial thromboplastin time, activated | Has intent | Diagnostic intent | false | Inferred relationship | Existential restriction modifier |  |  | 
| Partial thromboplastin time, activated | Has measured component | Surface-induced coagulation | false | Inferred relationship | Existential restriction modifier |  |  | 
| Partial thromboplastin time, activated | Component | Surface-induced coagulation | false | Inferred relationship | Existential restriction modifier |  |  | 
| Partial thromboplastin time, activated | Method | Evaluation - action | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Partial thromboplastin time, activated | PBCL flag true | PBCL flag true: report, request, level, test | false | Additional relationship | Existential restriction modifier |  |  | 
| Partial thromboplastin time, activated | PBCL flag true | PBCL flag true: report, request, level, test | false | Additional relationship | Existential restriction modifier |  |  | 
| Partial thromboplastin time, activated | PBCL flag true | PBCL flag true: report, request, battery, level, test | false | Additional relationship | Existential restriction modifier |  |  | 
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Activated partial thromboplastin time ratio | Is a | True | Partial thromboplastin time, activated | Inferred relationship | Existential restriction modifier |  | 
| Partial thromboplastin time ratio | Is a | True | Partial thromboplastin time, activated | Inferred relationship | Existential restriction modifier |  | 
| Activated partial thromboplastin time 50:50 mix | Is a | True | Partial thromboplastin time, activated | Inferred relationship | Existential restriction modifier |  | 
| Activated partial thromboplastin time 80:20 mix | Is a | True | Partial thromboplastin time, activated | Inferred relationship | Existential restriction modifier |  | 
| Activated partial thromboplastin time - reference | Is a | True | Partial thromboplastin time, activated | Inferred relationship | Existential restriction modifier |  | 
| Partial thromboplastin time increased | Interprets | False | Partial thromboplastin time, activated | Inferred relationship | Existential restriction modifier | 1 | 
| Activated partial thromboplastin time finding | Interprets | True | Partial thromboplastin time, activated | Inferred relationship | Existential restriction modifier | 1 | 
| Partial thromboplastin time increased | Interprets | True | Partial thromboplastin time, activated | Inferred relationship | Existential restriction modifier | 1 | 
| Partial thromboplastin time increased | Interprets | False | Partial thromboplastin time, activated | Inferred relationship | Existential restriction modifier | 1 | 
| Partial thromboplastin time below reference range | Interprets | True | Partial thromboplastin time, activated | Inferred relationship | Existential restriction modifier | 1 | 
| Activated partial thromboplastin time using lupus anticoagulant insensitive reagent (procedure) | Is a | True | Partial thromboplastin time, activated | Inferred relationship | Existential restriction modifier |  |