| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Inspection of atrioventricular valve | Is a | False | Atrioventricular (non-mitral, non-tricuspid) valve operation | Inferred relationship | Existential restriction modifier |  | 
| Repair of atrioventricular valve | Is a | False | Atrioventricular (non-mitral, non-tricuspid) valve operation | Inferred relationship | Existential restriction modifier |  | 
| Atrioventricular valvotomy | Is a | False | Atrioventricular (non-mitral, non-tricuspid) valve operation | Inferred relationship | Existential restriction modifier |  | 
| Atrioventricular valvectomy | Is a | False | Atrioventricular (non-mitral, non-tricuspid) valve operation | Inferred relationship | Existential restriction modifier |  | 
| Operation on implanted atrioventricular valve | Is a | True | Atrioventricular (non-mitral, non-tricuspid) valve operation | Inferred relationship | Existential restriction modifier |  | 
| Operation on atrioventricular valve chordae tendinae | Is a | True | Atrioventricular (non-mitral, non-tricuspid) valve operation | Inferred relationship | Existential restriction modifier |  | 
| Suturing of atrioventricular valve | Is a | False | Atrioventricular (non-mitral, non-tricuspid) valve operation | Inferred relationship | Existential restriction modifier |  | 
| Operation on atrioventricular papillary muscle | Is a | True | Atrioventricular (non-mitral, non-tricuspid) valve operation | Inferred relationship | Existential restriction modifier |  | 
| Excision of vegetations from atrioventricular valve | Is a | False | Atrioventricular (non-mitral, non-tricuspid) valve operation | Inferred relationship | Existential restriction modifier |  | 
| Operation on atrioventricular valve leaflet | Is a | True | Atrioventricular (non-mitral, non-tricuspid) valve operation | Inferred relationship | Existential restriction modifier |  | 
| Open atrioventricular valvotomy | Is a | False | Atrioventricular (non-mitral, non-tricuspid) valve operation | Inferred relationship | Existential restriction modifier |  | 
| Closed atrioventricular valvotomy | Is a | False | Atrioventricular (non-mitral, non-tricuspid) valve operation | Inferred relationship | Existential restriction modifier |  | 
| Atrioventricular (non-mitral non-tricuspid) valve replacement | Is a | True | Atrioventricular (non-mitral, non-tricuspid) valve operation | Inferred relationship | Existential restriction modifier |  | 
| Repair of rupture of atrioventricular valve chordae tendinae | Is a | False | Atrioventricular (non-mitral, non-tricuspid) valve operation | Inferred relationship | Existential restriction modifier |  | 
| Annuloplasty of atrioventricular valve | Is a | False | Atrioventricular (non-mitral, non-tricuspid) valve operation | Inferred relationship | Existential restriction modifier |  | 
| Division/resection of atrioventricular valve chordae tendinae | Is a | False | Atrioventricular (non-mitral, non-tricuspid) valve operation | Inferred relationship | Existential restriction modifier |  | 
| Shortening plasty to atrioventricular valve chordae tendinae | Is a | False | Atrioventricular (non-mitral, non-tricuspid) valve operation | Inferred relationship | Existential restriction modifier |  | 
| Resection of atrioventricular valve leaflet | Is a | True | Atrioventricular (non-mitral, non-tricuspid) valve operation | Inferred relationship | Existential restriction modifier |  | 
| Balloon dilatation of implanted atrioventricular valve | Is a | True | Atrioventricular (non-mitral, non-tricuspid) valve operation | Inferred relationship | Existential restriction modifier |  |