| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Entire dorsal spinal cord | Is a | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier |  | 
| Structure of segment of thoracic spinal cord | Is a | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier |  | 
| Thoracic spinal cord meninges structure | Is a | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier |  | 
| Structure of thoracic spinal cerebrospinal fluid pathway | Is a | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier |  | 
| Structure of thoracic spinal cord white matter | Is a | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier |  | 
| Structure of upper thoracic spinal cord | Is a | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier |  | 
| Structure of spinal cord nucleus dorsalis | Is a | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier |  | 
| Thoracic spinal cord gray matter structure | Is a | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier |  | 
| Thoracic spinal nerve root structure | Is a | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier |  | 
| Structure of thoracic spinal cord central canal | Is a | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier |  | 
| Structure of lower thoracic spinal cord | Is a | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier |  | 
| Thoracic chemical sympathectomy | Procedure site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier |  | 
| Thoracic spondylosis with radiculopathy | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Thoracic spondylosis with myelopathy | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Local anesthetic thoracic intrathecal block | Procedure site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 2 | 
| Thoracic intrathecal neurolysis | Procedure site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 5 | 
| Computed tomography myelogram of thoracic region | Procedure site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Contusion of thoracic cord | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Edema of thoracic cord | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Laceration of thoracic spinal cord | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Transection of thoracic cord | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Thoracic myelography | Procedure site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier |  | 
| Spinal cord injury of thoracic region without bone injury | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of thoracic spine with spinal cord injury | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 2 | 
| Thoracolumbar sympathectomy | Procedure site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier |  | 
| Single-level thoracic spondylosis with myelopathy | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Two-level thoracic spondylosis with myelopathy | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Multiple-level thoracic spondylosis with myelopathy | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Single-level thoracic spondylosis with radiculopathy | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Two-level thoracic spondylosis with radiculopathy | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Multiple-level thoracic spondylosis with radiculopathy | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Thoracic cord injury without spinal bone injury | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Complete thoracic cord injury, without bony injury, T1-6 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Anterior thoracic cord injury, without bony injury, T1-6 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Central thoracic cord injury, without bony injury, T1-6 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Posterior thoracic cord injury without bony injury, T1-6 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Complete thoracic cord injury, without bony injury, T7-12 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Anterior thoracic cord injury, without bony injury, T7-12 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Central thoracic cord injury, without bony injury, T7-12 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Posterior thoracic cord injury without bony injury, T7-12 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Concussion and edema of thoracic spinal cord | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Unspecified thoracic cord injury, without bony injury, T1-6 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Incomplete thoracic cord injury, unspecified, without bony injury, T1-6 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Unspecified thoracic cord injury, without bony injury, T7-12 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Incomplete thoracic cord injury, unspecified, without bony injury, T7-12 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Thoracic cord injury without spinal bone injury, NOS | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Incomplete spinal cord lesion at T1-T6 level without bone injury | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 2 | 
| Local anesthetic thoracic intrathecal block | Procedure site - Indirect | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Computed tomography myelogram of thoracic region | Procedure site - Direct | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Lipoma of dorsal spinal cord | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Primary decompression of thoracic spinal cord and fusion of joint of thoracic spine | Procedure site - Direct | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Spina bifida aperta of thoracic spine | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Primary foraminoplasty of cervical spine using laser | Procedure site - Direct | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 2 | 
| Transection of thoracic cord | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Primary foraminoplasty of thoracic spine using laser | Procedure site - Direct | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 2 | 
| Revision of laser foraminoplasty of thoracic spine | Procedure site - Direct | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Single-level thoracic spondylosis with myelopathy | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Incomplete thoracic cord injury, unspecified, without bony injury, T1-6 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Unspecified thoracic cord injury, without bony injury, T1-6 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Incomplete thoracic cord injury, unspecified, without bony injury, T7-12 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Posterior thoracic cord injury without bony injury, T1-6 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Thoracic spondylosis with myelopathy | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Thoracic cord injury without spinal bone injury, NOS | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Unspecified thoracic cord injury, without bony injury, T7-12 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Multiple-level thoracic spondylosis with myelopathy | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Posterior thoracic cord injury without bony injury, T7-12 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Lipoma of dorsal spinal cord | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Two-level thoracic spondylosis with myelopathy | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Central thoracic cord injury, without bony injury, T7-12 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Two-level thoracic spondylosis with radiculopathy | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Single-level thoracic spondylosis with radiculopathy | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Anterior thoracic cord injury, without bony injury, T1-6 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Complete thoracic cord injury, without bony injury, T1-6 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Multiple-level thoracic spondylosis with radiculopathy | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Thoracic spondylosis with radiculopathy | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Edema of thoracic cord | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Transection of thoracic cord | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Thoracic cord injury without spinal bone injury | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Spinal cord injury of thoracic region without bone injury | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Complete thoracic cord injury, without bony injury, T7-12 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Anterior thoracic cord injury, without bony injury, T7-12 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Concussion and edema of thoracic spinal cord | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Central thoracic cord injury, without bony injury, T1-6 | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Spina bifida aperta of thoracic spine | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Contusion of thoracic cord | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Computed tomography myelogram of thoracic region | Procedure site - Direct | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of thoracic spine with spinal cord injury | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 2 | 
| Revision of laser foraminoplasty of thoracic spine | Procedure site - Direct | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Revision of laser foraminoplasty of thoracic spine | Procedure site - Direct | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Thoracic myelocele | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Incomplete transverse lesion of thoracic spinal cord | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Thoracic myelocele | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Fracture of thoracic spine with cord lesion | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Incomplete transverse lesion of thoracic spinal cord | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 2 | 
| Open fracture of thoracic spine with spinal cord lesion | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 2 | 
| Closed fracture of thoracic spine with spinal cord lesion | Finding site | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 2 | 
| Open fracture of thoracic spine with spinal cord injury | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 2 | 
| Injury of thoracic spinal cord | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Computed tomography myelogram of thoracic spine with lumbar injection of contrast | Procedure site - Direct | False | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 7 | 
| Concussion of thoracic spinal cord | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 1 | 
| Traumatic edema of thoracic spinal cord | Finding site | True | Thoracic spinal cord structure | Inferred relationship | Existential restriction modifier | 2 |