| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Entire truncus arteriosus of fetus | Is a | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some |  | 
| Repair of common arterial trunk with right ventricle to pulmonary trunk direct anastomosis | Procedure site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Truncus arteriosus, Edwards' type IV | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Type II common arterial trunk | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Total repair of truncus arteriosus, Rastelli type operation | Procedure site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Total repair of truncus arteriosus | Procedure site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some |  | 
| Common arterial trunk and separate origin of pulmonary arteries (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Common truncus arteriosus (disorder) | Finding site | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Common arterial trunk and common origin of pulmonary arteries (disorder) | Finding site | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Repair of heart atrial septum in total repair of truncus arteriosus | Procedure site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Formation of conduit of right ventricle and pulmonary artery in repair of pulmonary artery atresia in truncus arteriosus (procedure) | Procedure site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Common arterial trunk and widely separate origin of pulmonary arteries (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Total repair of truncus arteriosus, one-stage | Procedure site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Application of band to persistent truncus arteriosus | Procedure site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Application of band to persistent truncus arteriosus | Procedure site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 3 | 
| Repair of truncus arteriosus (procedure) | Procedure site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Total repair of truncus arteriosus (procedure) | Procedure site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Application of band to persistent truncus arteriosus | Procedure site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Application of band to persistent truncus arteriosus | Procedure site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 3 | 
| Application of band to persistent truncus arteriosus | Procedure site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 3 | 
| Application of band to persistent truncus arteriosus | Procedure site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Application of band to persistent truncus arteriosus | Procedure site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 3 | 
| Application of band to persistent truncus arteriosus | Procedure site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Application of band to persistent truncus arteriosus | Procedure site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Application of band to persistent truncus arteriosus | Procedure site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 3 | 
| Application of band to persistent truncus arteriosus | Procedure site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Application of band to persistent truncus arteriosus | Procedure site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 3 | 
| Repair of common arterial trunk with right ventricle to pulmonary trunk direct anastomosis | Procedure site - Direct (attribute) | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 3 | 
| Total repair of truncus arteriosus, Rastelli type operation | Procedure site - Direct (attribute) | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Repair of heart atrial septum in total repair of truncus arteriosus | Procedure site - Direct (attribute) | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Formation of conduit of right ventricle and pulmonary artery in repair of pulmonary artery atresia in truncus arteriosus (procedure) | Procedure site - Direct (attribute) | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Total repair of truncus arteriosus, one-stage | Procedure site - Direct (attribute) | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Application of band to persistent truncus arteriosus | Procedure site - Direct (attribute) | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Application of band to persistent truncus arteriosus | Procedure site - Indirect (attribute) | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Repair of truncus arteriosus (procedure) | Procedure site - Direct (attribute) | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Total repair of truncus arteriosus (procedure) | Procedure site - Direct (attribute) | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Common arterial trunk and widely separate origin of pulmonary arteries (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Total repair of truncus arteriosus, Rastelli type operation | Procedure site - Direct (attribute) | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Common arterial trunk and separate origin of pulmonary arteries (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Common truncus arteriosus (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Repair of heart atrial septum in total repair of truncus arteriosus | Procedure site - Direct (attribute) | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Total repair of truncus arteriosus, one-stage | Procedure site - Direct (attribute) | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Truncus arteriosus, Edwards' type IV | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Total repair of truncus arteriosus (procedure) | Procedure site - Direct (attribute) | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Repair of truncus arteriosus (procedure) | Procedure site - Direct (attribute) | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Common arterial trunk and common origin of pulmonary arteries (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Application of band to persistent truncus arteriosus | Procedure site - Indirect (attribute) | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Application of band to persistent truncus arteriosus | Procedure site - Direct (attribute) | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Common arterial trunk with crossed over pulmonary arteries (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Common arterial trunk with obstruction of aortic arch (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 3 | 
| Common arterial trunk with pulmonary arteries arising from trunk and unobstructed aortic arch (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Common arterial trunk with pulmonary origin from truncal valve sinus (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Common arterial trunk with isolated pulmonary artery (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Common truncus arteriosus (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Common arterial trunk with pulmonary arteries arising from trunk and unobstructed aortic arch (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 3 | 
| Truncus arteriosus, Edwards' type IV | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 3 | 
| Common arterial trunk and widely separate origin of pulmonary arteries (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 3 | 
| Common arterial trunk with crossed over pulmonary arteries (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 3 | 
| Common arterial trunk and common origin of pulmonary arteries (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 3 | 
| Common truncus arteriosus (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 3 | 
| Common arterial trunk and separate origin of pulmonary arteries (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 3 | 
| Common arterial trunk with pulmonary origin from truncal valve sinus (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 3 | 
| Common arterial trunk with isolated pulmonary artery (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 3 | 
| Common arterial trunk with obstruction of aortic arch (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 5 | 
| Common arterial trunk with aortic dominance (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 3 | 
| Common arterial trunk with pulmonary dominance co-occurrent with interrupted aortic arch (disorder) | Finding site | False | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 4 | 
| Common arterial trunk with pulmonary dominance co-occurrent with interrupted aortic arch (disorder) | Finding site | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Common arterial trunk with aortic dominance (disorder) | Finding site | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Common arterial trunk and separate origin of pulmonary arteries (disorder) | Finding site | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Common arterial trunk with obstruction of aortic arch (disorder) | Finding site | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 2 | 
| Common arterial trunk with pulmonary origin from truncal valve sinus (disorder) | Finding site | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Truncus arteriosus, Edwards' type IV | Finding site | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Common arterial trunk with isolated pulmonary artery (disorder) | Finding site | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Common arterial trunk with crossed over pulmonary arteries (disorder) | Finding site | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Common arterial trunk with pulmonary arteries arising from trunk and unobstructed aortic arch (disorder) | Finding site | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Common arterial trunk and widely separate origin of pulmonary arteries (disorder) | Finding site | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Acquired abnormality of common arterial trunk following repair of truncus arteriosus (disorder) | Finding site | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Common arterial trunk with pulmonary dominance and aortic coarctation | Finding site | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Common arterial trunk with pulmonary dominance (disorder) | Finding site | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Acquired stenosis of common arterial trunk following procedure | Finding site | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 | 
| Microphthalmia, microtia, fetal akinesia syndrome | Finding site | True | Structure of truncus arteriosus of fetus | Inferred relationship | Some | 1 |