M87.121

Billable

Osteonecrosis due to drugs, right humerus

HCC Category Mapping

V24HCC 39 — Bone/Joint/Muscle Infections/Necrosis

0.482

ESRDHCC 39 — Bone/Joint/Muscle Infections/Necrosis

0.000

RxHCCHCC 80 — Bone/Joint/Muscle Infections/Necrosis

0.000

What This Code Means

Death of bone tissue in the right upper arm bone (humerus) caused by medication use.

Coding Tips

•Distinguish between shoulder (M87.11x) and humerus (M87.12x) locations
•Document the causative medication for complete clinical documentation

Clinical Significance

Drug-induced osteonecrosis of the right humerus represents serious medication-related bone death affecting the upper arm bone, requiring immediate evaluation of causative agents and treatment modifications. This condition can significantly impact arm function and strength, often necessitating surgical intervention and comprehensive rehabilitation.

Documentation Requirements

✓Specific documentation of right humerus involvement
✓Clear identification of drug-induced etiology
✓Documentation of causative medication(s)
✓Imaging studies confirming humeral osteonecrosis
✓Timeline establishing drug exposure relationship
✓Assessment of right arm function and strength
✓Evaluation for medication discontinuation or modification
✓Treatment plan including potential surgical options

Commonly Confused Codes

M87.021 — Idiopathic osteonecrosis of right humerus (no drug cause)M87.221 — Trauma-related osteonecrosis of right humerus (injury-related)M87.321 — Other secondary osteonecrosis of right humerus (different cause)M87.122 — Drug-induced osteonecrosis of left humerus (wrong laterality)M84.421 — Pathological fracture of right humerus (different pathology)

Code Hierarchy

└M87Osteonecrosis └M87.1Osteonecrosis due to drugs └M87.12Osteonecrosis due to drugs, humerus └M87.121Osteonecrosis due to drugs, right humerus

└M87.121Osteonecrosis due to drugs, right humerus