| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Sprain thumb, metacarpophalangeal joint, radial collateral ligament | Is a | False | Sprain of ligament of thumb | Inferred relationship | Existential restriction modifier |  | 
| Sprain thumb, metacarpophalangeal joint, ulnar collateral ligament | Is a | False | Sprain of ligament of thumb | Inferred relationship | Existential restriction modifier |  | 
| Sprain thumb, interphalangeal joint, radial collateral ligament | Is a | False | Sprain of ligament of thumb | Inferred relationship | Existential restriction modifier |  | 
| Sprain thumb, interphalangeal joint, ulnar collateral ligament | Is a | False | Sprain of ligament of thumb | Inferred relationship | Existential restriction modifier |  | 
| Sprain thumb, carpometacarpal joint | Is a | False | Sprain of ligament of thumb | Inferred relationship | Existential restriction modifier |  | 
| Sprain thumb, interphalangeal joint, nonspecific | Is a | False | Sprain of ligament of thumb | Inferred relationship | Existential restriction modifier |  | 
| Volar plate injury, thumb, interphalangeal joint | Is a | False | Sprain of ligament of thumb | Inferred relationship | Existential restriction modifier |  | 
| Sprain thumb, metacarpophalangeal joint nonspecific | Is a | False | Sprain of ligament of thumb | Inferred relationship | Existential restriction modifier |  | 
| Sprain thumb, metacarpophalangeal joint, radial collateral ligament | Is a | False | Sprain of ligament of thumb | Inferred relationship | Existential restriction modifier |  | 
| Sprain thumb, metacarpophalangeal joint, ulnar collateral ligament | Is a | False | Sprain of ligament of thumb | Inferred relationship | Existential restriction modifier |  | 
| Volar plate injury, thumb, metacarpophalangeal joint | Is a | False | Sprain of ligament of thumb | Inferred relationship | Existential restriction modifier |  | 
| Sprained finger/thumb | Is a | False | Sprain of ligament of thumb | Inferred relationship | Existential restriction modifier |  | 
| Sprain of ligament of right thumb | Is a | True | Sprain of ligament of thumb | Inferred relationship | Existential restriction modifier |  | 
| Sprain of ligament of left thumb | Is a | True | Sprain of ligament of thumb | Inferred relationship | Existential restriction modifier |  | 
| Sprain of ligament of interphalangeal joint of thumb | Is a | True | Sprain of ligament of thumb | Inferred relationship | Existential restriction modifier |  | 
| Sprain of ligament of metacarpophalangeal joint of thumb | Is a | True | Sprain of ligament of thumb | Inferred relationship | Existential restriction modifier |  |