| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Lumbar sprain | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Abrasion, interscapular | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Insect bite, nonvenomous, of interscapular region | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Abrasion, scapular area | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Pressure injury of sacral region of back | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Cauda equina injury without bone injury | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Contusion of lumbar cord | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Contusion of sacral cord | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Laceration of lumbar cord | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Laceration of sacral cord | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Transection of lumbar cord | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Transection of sacral cord | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Fracture dislocation of lumbar spine | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Lumbar spinal cord injury without bone injury | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Upper back injury | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Lower back injury | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Stab wound of back | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Puncture wound of back | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Needle stick injury of back | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Collapse of lumbar vertebra | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Contusion of sacral region | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Wedge fracture of vertebra | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Cauda equina injury co-occurrent and due to open fracture of sacrum AND/OR coccyx | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Closed traumatic dislocation of vertebra | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Fracture of lumbar spine | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Fracture of sacrum | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Nonvenomous insect bite of scapular region with infection | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Injury of lumbar nerve roots | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Open wound of lumbar region without complication | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Sacral spinal cord injury without bone injury | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Superficial injury of back without infection | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Nonvenomous insect bite of interscapular region with infection | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Open wound of lumbar region with complication | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Superficial injury of back with infection | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Open wound of sacroiliac region with complication | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Crushing injury of back | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Injury of interscapular region | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Nonvenomous insect bite of scapular region without infection | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Burn of back | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Injury of inferior mesenteric plexus | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Injury of sacral nerve roots | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Open dislocation of vertebra | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Superficial injury of scapular region without infection | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Closed fracture of lumbar spine with spinal cord lesion | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Closed spinal fracture with complete lumbar cord lesion | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Closed spinal fracture with anterior lumbar cord lesion | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Closed spinal fracture with central lumbar cord lesion | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Closed spinal fracture with posterior lumbar cord lesion | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Cauda equina lesion co-occurrent and due to closed spinal fracture | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Open fracture of lumbar spine with spinal cord lesion | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Open spinal fracture with complete lumbar cord lesion | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Open spinal fracture with anterior lumbar cord lesion | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Open spinal fracture with central lumbar cord lesion | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Open spinal fracture with posterior lumbar cord lesion | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Cauda equina lesion co-occurrent and due to open spinal fracture | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Abrasion of interscapular region, infected | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Lumbar cord injury without spinal bone injury | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Sacral cord injury without bony injury | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Cauda equina injury without bony injury | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Lumbosacral sprain | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Fracture sacrum/coccyx with cord lesion | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Other back injuries | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Injury of lumbar spine | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Open wound of back | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Traumatic blister of back | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Wood splinter in back | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Cauda equina injury co-occurrent and due to closed fracture of sacrum AND/OR coccyx | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Sprain of ligament of lumbosacral joint | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Contusion of interscapular region | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Contusion of coccyx | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Cauda equina injury co-occurrent and due to open fracture of sacrum AND/OR coccyx | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Traumatic dislocation of sacroiliac joint | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Closed traumatic dislocation of lumbosacral joint | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Closed subluxation lumbar spine | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Closed subluxation of coccyx | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Closed subluxation of sacrum | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Sprain of ligament of lumbosacral joint | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Insect bite, nonvenomous, of interscapular region | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Abrasion of scapular region, infected | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Closed injury cauda equina | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Injury of celiac ganglion | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Injury of celiac plexus | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Injury of cauda equina | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Laceration of lumbar cord | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Laceration of sacral cord | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Traumatic blister of scapular region, infected | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Abrasion and/or friction burn of scapular region with infection | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Fracture dislocation of sacroiliac joint | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Fracture subluxation of sacroiliac joint | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Sprain of sacroiliac ligament | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Nonvenomous insect bite of scapular region with infection | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Superficial foreign body of interscapular region without major open wound AND without infection | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Abrasion and/or friction burn of scapular region without infection | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Abrasion and/or friction burn of interscapular region without infection | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Closed traumatic dislocation of coccyx | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Nonvenomous insect bite of scapular region without infection | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Abrasion and/or friction burn of interscapular region with infection | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Abrasion, back | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Traumatic injury of spinal cord and/or vertebral column | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Contusion of back | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  | 
| Laceration of back | Is a | False | Injury of back | Inferred relationship | Existential restriction modifier |  |