M87.161
BillableOsteonecrosis due to drugs, right tibia
HCC Category Mapping
V24HCC 39 — Bone/Joint/Muscle Infections/Necrosis
0.482ESRDHCC 39 — Bone/Joint/Muscle Infections/Necrosis
0.000RxHCCHCC 80 — Bone/Joint/Muscle Infections/Necrosis
0.000What This Code Means
Death of bone tissue in the right shinbone (tibia) caused by medication side effects, affecting the lower leg and potentially impacting mobility.
Coding Tips
- •Tibial osteonecrosis is less common than femoral involvement; confirm diagnosis with appropriate imaging documentation
- •Clearly document right-sided involvement and the specific medication responsible for this complication
Clinical Significance
Drug-induced osteonecrosis of the right tibia affects the primary weight-bearing bone of the lower leg, potentially compromising knee and ankle joint function. This condition can significantly impact mobility and may require complex orthopedic intervention to preserve limb function and prevent complications.
Documentation Requirements
- ✓Specific documentation of right tibia involvement in osteonecrosis
- ✓Causative medication identification with exposure timeline
- ✓Imaging studies confirming tibial osteonecrosis
- ✓Assessment of weight-bearing capacity and gait abnormalities
- ✓Documentation of knee and ankle joint function
- ✓Drug therapy duration and correlation with symptom development
- ✓Treatment plan including weight-bearing restrictions and interventions
- ✓Provider statement establishing drug-induced etiology
Commonly Confused Codes
M87.162 — Left tibia osteonecrosis, opposite lateralityM87.163 — Unspecified tibia when right side is documentedM87.164 — Right fibula osteonecrosis affects different lower leg boneM87.261 — Post-traumatic right tibia requires injury historyS82.2 — Acute tibia fracture is traumatic injury, not chronic necrosis
Code Hierarchy
└M87Osteonecrosis└M87.1Osteonecrosis due to drugs└M87.16Osteonecrosis due to drugs, tibia and fibula└M87.161Osteonecrosis due to drugs, right tibia
└M87.161Osteonecrosis due to drugs, right tibia