M87.052

HCC Category Mapping

What This Code Means

Death of bone tissue in the left thighbone (femur) without infection, occurring without a known cause. This condition commonly affects the femoral head and can severely limit walking and weight-bearing activities.

Coding Tips

• •Confirm left side is documented; if bilateral, assign codes for both sides separately
• •Note the stage of necrosis if documented (early, intermediate, or advanced) as it may affect clinical management

Clinical Significance

Idiopathic aseptic necrosis of the left femur involves bone death in the thighbone without known cause, commonly affecting the femoral head and severely limiting walking and weight-bearing activities. This condition commonly affects the femoral head and can severely limit walking and weight-bearing activities, often requiring hip replacement surgery and extensive rehabilitation.

Documentation Requirements

• ✓Clear documentation of aseptic necrosis involving left femur
• ✓Confirmation of idiopathic nature without identifiable underlying cause
• ✓Radiological evidence demonstrating bone necrosis in left femoral structures
• ✓Specific laterality documentation indicating left femur involvement
• ✓Clinical exclusion of infectious etiology
• ✓Functional assessment of left hip mobility and weight-bearing capacity
• ✓Treatment approach documentation including conservative or surgical management
• ✓Pain assessment and impact on ambulation and daily activities

Commonly Confused Codes