| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Bony decompression of spinal nerve root | Is a | True | Decompression of spinal nerve root | Inferred relationship | Existential restriction modifier |  | 
| Connective tissue decompression of spinal nerve root | Is a | True | Decompression of spinal nerve root | 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 | Decompression of spinal nerve root | 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 | Decompression of spinal nerve root | 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 | Decompression of spinal nerve root | 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 | Decompression of spinal nerve root | 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 | Decompression of spinal nerve root | 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 | Decompression of spinal nerve root | 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 | Decompression of spinal nerve root | 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 | Decompression of spinal nerve root | 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 | Decompression of spinal nerve root | 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 | Decompression of spinal nerve root | 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 | Decompression of spinal nerve root | Inferred relationship | Existential restriction modifier |  |