M87.122

Billable

Osteonecrosis due to drugs, left 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 left 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 left humerus indicates medication-related bone death affecting the upper arm bone, requiring immediate assessment of causative drugs and potential treatment modifications. This serious condition can severely impact arm function and may progress to fracture or joint collapse without appropriate management.

Documentation Requirements

✓Specific documentation of left humerus involvement
✓Clear identification of drug-induced etiology
✓Documentation of causative medication(s)
✓Imaging evidence of left humeral osteonecrosis
✓Temporal relationship between drug exposure and onset
✓Functional assessment of left arm strength and mobility
✓Medication review for discontinuation or modification
✓Treatment planning including surgical considerations

Commonly Confused Codes

M87.022 — Idiopathic osteonecrosis of left humerus (unknown cause)M87.222 — Trauma-related osteonecrosis of left humerus (injury-related)M87.322 — Other secondary osteonecrosis of left humerus (different secondary cause)M87.121 — Drug-induced osteonecrosis of right humerus (wrong laterality)S42.202 — Unspecified fracture of left humerus (acute injury, not necrosis)

Code Hierarchy

└M87Osteonecrosis └M87.1Osteonecrosis due to drugs └M87.12Osteonecrosis due to drugs, humerus └M87.122Osteonecrosis due to drugs, left humerus

└M87.122Osteonecrosis due to drugs, left humerus