M87.843
BillableOther osteonecrosis, unspecified hand
HCC Category Mapping
V28HCC 92 — Bone/Joint/Muscle Infections/Necrosis
0.209V24HCC 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 hand when the specific side (left or right) is not documented or applies to both hands.
Coding Tips
- •Use this code only when laterality cannot be determined from medical record
- •Query provider if documentation indicates a specific side to ensure accurate coding
Clinical Significance
Unspecified hand osteonecrosis represents a chronic bone condition with potential for severe functional impairment and disability. This diagnosis is significant for risk adjustment as it indicates ongoing specialized orthopedic care needs and potential requirement for complex surgical interventions.
Documentation Requirements
- ✓Documentation of osteonecrosis affecting hand bones (metacarpals, phalanges)
- ✓Specification that the condition is from causes other than idiopathic or traumatic
- ✓Evidence that laterality (right or left) is not specified or cannot be determined
- ✓Imaging studies confirming bone necrosis in hand structures
- ✓Clinical presentation including hand pain, reduced function, and grip impairment
- ✓Exclusion of infectious or drug-induced causes
- ✓Assessment of impact on activities of daily living and occupational function
- ✓Provider documentation of treatment plans and monitoring requirements
Commonly Confused Codes
M87.043 — Idiopathic aseptic necrosis of unspecified hand - specifically idiopathic etiologyM87.841/M87.842 — Other osteonecrosis of right/left hand - when laterality is actually documentedM86.849 — Other osteomyelitis, unspecified hand - infectious bone disease rather than necrosisS62.309A — Unspecified fracture of fifth metacarpal bone, unspecified hand - acute trauma rather than chronic conditionM25.549 — Pain in joints of unspecified hand - symptom rather than specific bone pathology
Code Hierarchy
└M87Osteonecrosis└M87.8Other osteonecrosis└M87.84Other osteonecrosis, hand and fingers└M87.843Other osteonecrosis, unspecified hand
└M87.843Other osteonecrosis, unspecified hand