| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Acute and subacute bacterial endocarditis | Finding site | False | Endocardium structure | Inferred relationship | Some | 1 | 
| Non-rheumatic heart valve disorder | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Rupture of chordae tendineae | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Chronic rheumatic mitral valvulitis | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Rheumatic mitral stenosis with insufficiency | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Chronic rheumatic aortic valve disease | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Non-rheumatic aortic sclerosis | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Syphilitic endocarditis of unspecified valve | Finding site | False | Endocardium structure | Inferred relationship | Some | 1 | 
| Syphilitic endocarditis of heart valve NOS | Finding site | False | Endocardium structure | Inferred relationship | Some | 1 | 
| Mitral valve disease NOS | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Rheumatic aortic valve disease NOS | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Mitral and aortic valve disease NOS | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Tricuspid valve disease NEC | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Tricuspid stenosis, cause unspecified | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Tricuspid insufficiency, cause unspecified | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Tricuspid stenosis and insufficiency, cause unspecified | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Rheumatic tricuspid valve disease NOS | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Rheumatic pulmonary valve disease NOS | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Acute and subacute bacterial endocarditis NOS | Finding site | False | Endocardium structure | Inferred relationship | Some | 1 | 
| Infective endocarditis in diseases EC, NOS | Finding site | False | Endocardium structure | Inferred relationship | Some | 1 | 
| Acute and subacute endocarditis unspecified | Finding site | False | Endocardium structure | Inferred relationship | Some | 1 | 
| Acute endocarditis NOS | Finding site | False | Endocardium structure | Inferred relationship | Some | 1 | 
| Acute myoendocarditis NOS | Finding site | False | Endocardium structure | Inferred relationship | Some | 1 | 
| Acute periendocarditis NOS | Finding site | False | Endocardium structure | Inferred relationship | Some | 2 | 
| Subacute endocarditis NOS | Finding site | False | Endocardium structure | Inferred relationship | Some | 1 | 
| Subacute myoendocarditis NOS | Finding site | False | Endocardium structure | Inferred relationship | Some | 1 | 
| Subacute periendocarditis NOS | Finding site | False | Endocardium structure | Inferred relationship | Some | 1 | 
| Acute and subacute endocarditis unspecified, NOS | Finding site | False | Endocardium structure | Inferred relationship | Some | 1 | 
| Mitral incompetence, cause unspecified | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Mitral valve disorders NOS | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Aortic incompetence alone, cause unspecified | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Aortic stenosis alone, cause unspecified | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Aortic valve disorders NOS | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Tricuspid valve disorders NOS | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Pulmonary incompetence, cause unspecified | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Pulmonary stenosis, cause unspecified | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Pulmonary valve disorders NOS | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Endocarditis, valve unspecified | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Incompetence of unspecified heart valve | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Stenosis of unspecified heart valve | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Chronic cardiac valvulitis NOS | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Endocarditis, valve unspecified, OS | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Endocarditis, valve unspecified, NOS | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Papillary muscle disorder NOS | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| [X]Other mitral valve diseases | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| [X]Other rheumatic aortic valve diseases | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| [X]Other tricuspid valve diseases | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| [X]Other multiple valve diseases | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| [X]Multiple valve disease, unspecified | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| [X]Other non-rheumatic mitral valve disorders | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| [X]Other aortic valve disorders | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| [X]Other non-rheumatic tricuspid valve disorders | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| [X]Other pulmonary valve disorders | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| [X]Mitral valve disorders in diseases classified elsewhere | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| [X]Aortic valve disorders in diseases classified elsewhere | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| [X]Tricuspid valve disorders in diseases classified elsewhere | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| [X]Pulmonary valve disorders in diseases classified elsewhere | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| [X]Multiple valve disorders in diseases classified elsewhere | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| [X]Endocarditis, valve unspecified, in diseases classified elsewhere | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| [X]Non-rheumatic tricuspid valve disorder, unspecified | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| HEC syndrome | Finding site | True | Endocardium structure | Inferred relationship | Some | 2 | 
| Primary endocardial fibroelastosis | Finding site | True | Endocardium structure | Inferred relationship | Some | 1 | 
| Pulmonary valve anomaly, unspecified | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Congenital atresia of pulmonary valve NOS | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Congenital pulmonary stenosis NOS | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Other pulmonary valve anomalies | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Other pulmonary valve anomaly NOS | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Congenital tricuspid atresia or stenosis NOS | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Congenital aortic valve insufficiency, unspecified | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Congenital aortic valve insufficiency NOS | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Congenital mitral stenosis, unspecified | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Congenital mitral stenosis NOS | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| [X]Other congenital malformations of pulmonary valve | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| [X]Other congenital malformations of tricuspid valve | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| [X]Other congenital malformations of aortic and mitral valves | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| [X]Congenital malformation of tricuspid valve, unspecified | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| [X]Congenital malformation of aortic and mitral valves unspecified | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Rheumatic endocarditis NOS | Finding site | False | Endocardium structure | Inferred relationship | Some | 1 | 
| Other diseases of endocardium | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Rheumatic mitral disease NOS | Finding site | False | Endocardium structure | Inferred relationship | Some |  | 
| Non-rheumatic endocarditis NOS | Finding site | False | Endocardium structure | Inferred relationship | Some | 1 | 
| Acute and subacute endocarditis | Finding site | True | Endocardium structure | Inferred relationship | Some | 2 | 
| Infective endocarditis at site of patch of ventricular septal defect | Finding site | True | Endocardium structure | Inferred relationship | Some | 2 | 
| Infection causing myoendocarditis | Finding site | True | Endocardium structure | Inferred relationship | Some | 1 | 
| Structure of endocardium of left side of heart | Is a | True | Endocardium structure | Inferred relationship | Some |  | 
| Structure of endocardium of right side of heart | Is a | True | Endocardium structure | Inferred relationship | Some |  | 
| Vegetative endocarditis | Finding site | True | Endocardium structure | Inferred relationship | Some | 2 | 
| Infectious vegetative endocarditis | Finding site | True | Endocardium structure | Inferred relationship | Some | 1 | 
| Infectious vegetative endocarditis | Finding site | True | Endocardium structure | Inferred relationship | Some | 2 | 
| Vegetative endocarditis without infection | Finding site | True | Endocardium structure | Inferred relationship | Some | 1 | 
| Vegetative endocarditis without infection | Finding site | True | Endocardium structure | Inferred relationship | Some | 2 | 
| Congenital endocardial fibroelastosis | Finding site | True | Endocardium structure | Inferred relationship | Some | 1 | 
| Endomyocardial fibrosis | Finding site | True | Endocardium structure | Inferred relationship | Some | 1 | 
| Restrictive cardiomyopathy with endomyocardial fibrosis | Finding site | True | Endocardium structure | Inferred relationship | Some | 1 | 
| Primary endomyocardial fibrosis restrictive cardiomyopathy | Finding site | True | Endocardium structure | Inferred relationship | Some | 2 | 
| Tropical endomyocardial fibrosis | Finding site | True | Endocardium structure | Inferred relationship | Some | 1 | 
| Primary endomyocardial fibrosis cardiomyopathy | Finding site | True | Endocardium structure | Inferred relationship | Some | 2 | 
| MacCallum's patch | Finding site | True | Endocardium structure | Inferred relationship | Some | 3 | 
| Entire endocardium | Is a | True | Endocardium structure | Inferred relationship | Some |  | 
| Histoplasma duboisii with endocarditis | Finding site | False | Endocardium structure | Inferred relationship | Some | 1 | 
| Histoplasmosis with endocarditis | Finding site | False | Endocardium structure | Inferred relationship | Some | 1 |