| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Closed fractures of multiple sites of bone | Is a | True | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier |  | 
| Closed and compound fractures of multiple sites of bone | Is a | True | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier |  | 
| Compound fractures of multiple sites of bone | Is a | True | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier |  | 
| Multiple fractures involving skull or face with other bones | Is a | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier |  | 
| [X]Closed multiple fractures unspecified | Is a | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier |  | 
| [X]Open multiple fractures unspecified | Is a | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier |  | 
| Multiple fractures, unspecified | Is a | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier |  | 
| Open fracture of eight OR more ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Multiple fractures of forearm | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Multiple fractures of lower leg | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Multiple fractures of foot | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Multiple root fractures | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Open multiple fractures of lower limb AND ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 3 | 
| Multiple pelvic fractures | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Multiple fractures of sternum | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Complete disruption of pelvic ring | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of multiple bones of upper limbs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of multiple bones of upper limbs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Fracture of multiple ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Fracture of seven ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Fracture of six ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Multiple fractures of upper limb with sternum | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Open multiple fractures of both upper limbs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Open multiple fractures of both upper limbs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Open multiple fractures of lower limb with ribs AND sternum | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 5 | 
| Open fracture of three ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of multiple bones of lower limb | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Multiple fractures of upper limb with sternum AND ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Multiple fractures of both lower limbs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Fracture of two ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Fractures of multiple bones of lower limb | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of multiple sites of phalanges of hand | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Multiple fractures of hand bones | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Closed multiple fractures of lower limb with ribs AND sternum | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Open fracture of five ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Multiple fractures of upper AND lower limbs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 4 | 
| Multiple fractures of lower limb AND sternum | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Fracture of multiple bones of upper limb | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Fracture of eight OR more ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of two ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Multiple fractures of skull | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Fracture of four ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Closed multiple fractures of lower limb AND ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Multiple fractures of both upper limbs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Fracture of three ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of four ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Multiple fractures of upper limb with ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Closed fracture of multiple sites of phalanges of hand | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Fracture of five ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of seven ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Open fracture of multiple cervical vertebrae without spinal cord injury | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier |  | 
| Fracture of multiple sites of phalanges of hand | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of six ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Multiple open fractures of skull AND/OR face with cerebral laceration AND/OR contusion | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Multiple fractures of lower limb with ribs AND sternum | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Fracture of multiple sites of metacarpus | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Multiple fractures of lower limb AND ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Multiple fractures involving skull and facial bones | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 3 | 
| Closed multiple disruptions of pelvis | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Open multiple disruptions of pelvis | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Closed complete rupture of pelvic ring | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Open complete rupture of pelvic ring | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of multiple bones of hand | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Closed multiple fractures involving both upper limbs, and upper limb with rib(s) and sternum | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Multiple fractures of clavicle, scapula and humerus | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 3 | 
| Multiple fractures involving both lower limbs, lower with upper limb, and lower limb(s) with rib(s) and sternum | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Multiple closed fractures involving both lower limbs, lower with upper limb, and lower limb(s) with rib(s) and sternum | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Multiple fractures involving both upper limbs, and upper limb with rib(s) and sternum | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Closed multiple fractures of clavicle and/or scapula and/or humerus | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Other or multiple closed fracture of pelvis NOS | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Other or multiple open fracture of pelvis | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Multiple fractures of hand bones NOS | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Multiple fractures involving both upper limbs, and upper limb with rib(s) and sternum, NOS | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Multiple fractures involving both lower limbs, lower with upper limb, and lower limb(s) with rib(s) and sternum, NOS | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Closed multiple fractures of clavicle and/or scapula and/or humerus | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 4 | 
| Multiple fractures of clavicle, scapula and humerus | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 3 | 
| Multiple fractures of clavicle, scapula and humerus | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Open multiple fractures of lower limb AND ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Multiple fractures of upper limb with ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 5 | 
| Multiple fractures of upper AND lower limbs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 3 | 
| Open fracture of multiple sites of phalanges of hand | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Closed multiple fractures of upper AND lower limbs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Closed multiple fractures of upper AND lower limbs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 4 | 
| Open multiple fractures of upper limb with ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 3 | 
| Multiple open fractures of hand bones | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Open multiple fractures of upper limb with sternum AND ribs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Multiple closed fractures of skull AND/OR face without intracranial injury | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 3 | 
| Open multiple fractures of clavicle and/or scapula and/or humerus | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Open multiple fractures of clavicle and/or scapula and/or humerus | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Open multiple fractures of clavicle and/or scapula and/or humerus | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 3 | 
| Closed multiple fractures of clavicle and/or scapula and/or humerus | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Open multiple fractures involving both upper limbs, and upper limb with rib(s) and sternum | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Multiple open fractures involving both lower limbs, lower with upper limb, and lower limb(s) with rib(s) and sternum | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Open multiple fractures of both lower limbs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Closed multiple fractures of lower limb AND sternum | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 3 | 
| Closed multiple fractures of both lower limbs | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 3 | 
| Open multiple fractures of upper limb with sternum | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Open multiple fractures of lower limb AND sternum | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 | 
| Multiple fractures of upper limb with sternum | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 4 | 
| Open fracture of multiple bones of lower limb | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 1 | 
| Multiple fractures of clavicle, scapula and humerus | Associated morphology | False | Fracture of multiple sites of bone | Inferred relationship | Existential restriction modifier | 2 |