| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Atrioventricular (non-mitral, non-tricuspid) valve leaflet | Is a | True | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some |  | 
| Atrioventricular (non-mitral, non-tricuspid) valve annulus | Is a | True | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some |  | 
| Atrioventricular (non-mitral, non-tricuspid) valve papillary muscle | Is a | True | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some |  | 
| Atrioventricular (non-mitral, non-tricuspid) valve chordae tendinae | Is a | True | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some |  | 
| Entire atrioventricular (non-mitral, non-tricuspid) valve (body structure) | Is a | True | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some |  | 
| Common (non-mitral, non-tricuspid) atrioventricular valve structure | Is a | True | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some |  | 
| Left (non-mitral) atrioventricular valve structure | Is a | True | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some |  | 
| Right (non-tricuspid) atrioventricular valve structure | Is a | True | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some |  | 
| Ebstein's anomaly | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Ebstein-like malformation of mitral valve (disorder) | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Atrioventricular (non-mitral, non-tricuspid) valve operation | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Inspection of atrioventricular valve | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Repair of atrioventricular valve | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Operation on atrioventricular papillary muscle | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Reimplantation of atrioventricular valve papillary muscle | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Operation on atrioventricular valve chordae tendinae | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Repair of rupture of atrioventricular valve chordae tendinae | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 3 | 
| Prosthetic replacement of atrioventricular valve chordae tendinae | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Division/resection of atrioventricular valve chordae tendinae | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Fenestration operation to atrioventricular valve chordae tendinae | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Operation on atrioventricular valve leaflet | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Resection of atrioventricular valve leaflet | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Excision of lesion from atrioventricular valve leaflet | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Operation to atrioventricular valve bridging leaflet | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Division of atrioventricular valve bridging leaflet | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Liberation of superior bridging leaflet using patch | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Excision of vegetations from atrioventricular valve | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Excision of vegetations from atrioventricular valve | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 3 | 
| Excision of vegetations from implanted atrioventricular valve | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Removal of thrombus from atrioventricular valve | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Removal of thrombus from implanted atrioventricular valve | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Decalcification of atrioventricular valve | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Decalcification of implanted atrioventricular valve | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Closure of atrioventricular valve | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Atrioventricular valvotomy | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Open atrioventricular valvotomy | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Open atrioventricular valvotomy | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Closed atrioventricular valvotomy | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Closed atrioventricular valvotomy | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Balloon atrioventricular valvotomy | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Balloon dilatation of implanted atrioventricular valve | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 3 | 
| Balloon dilatation of implanted atrioventricular valve | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Atrioventricular valvectomy | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Atrioventricular (non-mitral non-tricuspid) valve replacement | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Operation on implanted atrioventricular valve | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Rotation of implanted atrioventricular valve | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Repair of implanted atrioventricular paravalvular leak | Procedure site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Supramitral left atrial ring | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Atrioventricular septal defect - isolated atrial component | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Congenital abnormality of atrioventricular valves in atrioventricular septal defect (disorder) | Finding site | True | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Tricuspid leaflet dysplasia | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Tricuspid annulus hypoplasia | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Dilatation of tricuspid annulus (disorder) | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Overriding tricuspid valve | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Straddling tricuspid valve | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Tricuspid leaflet abnormality | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Absent tricuspid leaflet | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Double orifice of tricuspid valve | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Tricuspid valve prolapse | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Accessory tissue on tricuspid leaflet | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Parachute malformation of tricuspid valve | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Mitral valve dysplasia | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Mitral leaflet dysplasia | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Overriding mitral valve | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Dilatation of mitral annulus | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Straddling mitral valve | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Ebstein-like downward displacement of mitral valve | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Anterior leaflet of mitral valve attached to septum | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Accessory tissue on mitral leaflet | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Mitral papillary muscle abnormality | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Absent mitral papillary muscle | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Fused mitral papillary muscles | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Hypoplastic mitral papillary muscle | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Atrioventricular septal defect and common atrioventricular junction | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Atrioventricular septal defect - isolated ventricular component | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Atrioventricular septal defect: atrial and ventricular components | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Atrioventricular septal defect - ventricular component | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Atrioventricular septal defect - ventricular component under superior bridging leaflet | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Atrioventricular septal defect with ventricular component under superior bridging leaflet with chords at crest ventricular septum (disorder) | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 3 | 
| Atrioventricular septal defect with ventricular component under superior bridging leaflet with chords to papillary muscle on right ventricular side septum (disorder) | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Atrioventricular septal defect with ventricular component under free floating superior bridging leaflet and chords to papillary muscle at right ventricular free wall (disorder) | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Atrioventricular septal defect - ventricular component under inferior bridging leaflet | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Abnormality of atrioventricular (non-mitral, non-tricuspid) valve | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Abnormality of common atrioventricular valve in atrioventricular septal defect | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 3 | 
| Atresia of common atrioventricular valve | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Imperforate common atrioventricular valve | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Hypoplasia of common atrioventricular valve | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 3 | 
| Dysplasia of common atrioventricular valve | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Regurgitation of common atrioventricular valve | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Common atrioventricular valve limited to one ventricle | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 3 | 
| Dilatation of common atrioventricular valve annulus | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 4 | 
| Common atrioventricular valve stenosis | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 4 | 
| Common atrioventricular valve leaflet abnormality | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Common atrioventricular valve prolapse | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| True cleft of common atrioventricular valve leaflet | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Accessory tissue on common atrioventricular valve leaflet | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 3 | 
| Double orifice of common atrioventricular valve | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Triple orifice of left ventricular component of common atrioventricular valve | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 4 | 
| Ebstein's anomaly of common atrioventricular valve | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 1 | 
| Abnormality of common atrioventricular valve papillary muscle | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 | 
| Parachute malformation of common atrioventricular valve | Finding site | False | Atrioventricular (non-mitral, non-tricuspid) valve structure | Inferred relationship | Some | 2 |