M87.045

HCC Category Mapping

What This Code Means

Death of bone tissue in the left finger(s) without infection, occurring without a known cause. This condition can lead to pain, loss of function, and potential collapse of the affected bone.

Coding Tips

• •Verify laterality is documented as left in the medical record before assigning this code
• •Confirm the condition is idiopathic (no identifiable cause) and not secondary to trauma, radiation, or other known factors

Clinical Significance

Idiopathic aseptic necrosis of left finger(s) involves bone death in phalangeal structures without known cause, potentially severely compromising fine motor function and hand dexterity. This condition can lead to pain, loss of function, and potential collapse of the affected bone requiring specialized hand surgery management.

Documentation Requirements

• ✓Clear documentation of aseptic necrosis involving left finger bones
• ✓Confirmation of idiopathic nature without identifiable underlying cause
• ✓Radiological evidence showing bone necrosis in left finger phalanges
• ✓Specific laterality documentation indicating left finger involvement
• ✓Clinical exclusion of infectious etiology
• ✓Functional assessment of left finger mobility and grip contribution
• ✓Treatment approach documentation including conservative or surgical management
• ✓Pain assessment and impact on activities requiring fine motor skills

Commonly Confused Codes