| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Excision of odontoid peg | Is a | True | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Partial excision of body of thoracic vertebra with decompression of spinal cord and nerve roots by transthoracic approach | Is a | True | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Partial excision of body of sacral vertebra with decompression of spinal cord, nerve roots and cauda equina by retroperitoneal approach | Is a | True | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Partial excision of body of lumbar vertebra with decompression of spinal cord, nerve roots and cauda equina by lateral extracavitary approach | Is a | True | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Partial excision of body of lumbar vertebra with decompression of spinal cord, nerve roots and cauda equina by thoracolumbar approach | Is a | True | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Partial excision of body of sacral vertebra with decompression of spinal cord, nerve roots and cauda equina by transperitoneal approach | Is a | True | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Partial excision of body of lower thoracic vertebra with decompression of spinal cord, nerve roots and cauda equina by thoracolumbar approach | Is a | True | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Partial excision of body of lumbar vertebra with decompression of spinal cord, nerve roots and cauda equina by transperitoneal approach | Is a | True | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Total excision of body of lumbar vertebra with decompression of spinal cord, nerve roots and cauda equina by transperitoneal approach | Is a | True | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Total excision of body of sacral vertebra with decompression of spinal cord, nerve roots and cauda equina by transperitoneal approach | Is a | True | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Total excision of body of sacral vertebra with decompression of spinal cord, nerve roots and cauda equina by retroperitoneal approach | Is a | True | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Partial excision of body of thoracic vertebra with decompression of spinal cord, nerve roots and cauda equina by extracavitary approach | Is a | True | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Primary anterior thoracic spine corpectomy and reconstruction HFQ | Is a | False | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Revisional anterior thoracic spine corpectomy and reconstruction HFQ | Is a | False | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Primary anterior cervical spine corpectomy with reconstruction HFQ | Is a | False | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Revisional anterior cervical spine corpectomy with reconstruction HFQ | Is a | False | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Primary anterior corpectomy of lumbar spine and reconstruction HFQ | Is a | False | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Revisional anterior corpectomy of lumbar spine and reconstruction HFQ | Is a | False | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Primary anterior excision of body of cervical vertebra with reconstruction (procedure) | Is a | True | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Revision anterior excision of body of cervical vertebra with reconstruction (procedure) | Is a | False | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Primary anterior excision of body of thoracic vertebra with reconstruction (procedure) | Is a | True | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Revision anterior excision of body of thoracic vertebra with reconstruction (procedure) | Is a | False | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Revision anterior excision of body of lumbar vertebra with reconstruction (procedure) | Is a | False | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  | 
| Primary anterior excision of body of lumbar vertebra with reconstruction (procedure) | Is a | True | Excision of vertebral body | Inferred relationship | Existential restriction modifier |  |