M87.162

HCC Category Mapping

What This Code Means

Death of bone tissue in the left tibia (shin bone) caused by medication side effects, leading to bone deterioration and potential collapse.

Coding Tips

• •Verify the specific drug causing osteonecrosis in the medical record and document it for complete coding accuracy
• •Ensure laterality is clearly documented as 'left' to distinguish from right or unspecified tibia codes

Clinical Significance

Drug-induced osteonecrosis of the left tibia represents medication-related bone death in the major weight-bearing bone of the lower leg, with potential impact on both knee and ankle joint mechanics. This condition requires comprehensive orthopedic evaluation and may necessitate complex surgical intervention to maintain limb function.

Documentation Requirements

• ✓Clear documentation of left tibia involvement in osteonecrosis
• ✓Specific causative medication with exposure details
• ✓Advanced imaging confirming left tibial osteonecrosis
• ✓Assessment of lower extremity function and weight-bearing status
• ✓Documentation of impact on mobility and daily activities
• ✓Drug exposure timeline and relationship to symptom onset
• ✓Comprehensive treatment plan including surgical considerations
• ✓Provider documentation establishing drug-induced etiology

Commonly Confused Codes