M87.046
BillableIdiopathic aseptic necrosis of unspecified finger(s)
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 finger(s) without infection, occurring without a known cause, when the specific finger or side is not specified. This condition affects the fingers and can result in pain and functional impairment.
Coding Tips
- •Use this code only when laterality cannot be determined from documentation
- •Query the provider if laterality information is available elsewhere in the medical record
Clinical Significance
Idiopathic aseptic necrosis of unspecified finger(s) represents bone death in digital bones when laterality is not documented, affecting finger function and potential collapse of affected bone. This condition affects the fingers and can result in pain and functional impairment requiring hand surgery evaluation and management.
Documentation Requirements
- ✓Documentation of aseptic necrosis affecting finger bones
- ✓Confirmation of idiopathic etiology without identifiable cause
- ✓Imaging studies demonstrating bone necrosis in finger phalanges
- ✓Absence of laterality specification in medical documentation
- ✓Exclusion of infectious causes through clinical assessment
- ✓Finger functional assessment including range of motion and grip contribution
- ✓Treatment plan documentation including therapeutic interventions
- ✓Pain management strategies and functional impact on hand activities
Commonly Confused Codes
M87.044 — Right finger(s) when laterality is actually documentedM87.045 — Left finger(s) when side is specified in recordM87.146 — Drug-induced unspecified finger osteonecrosisM87.246 — Trauma-related unspecified finger osteonecrosisM87.043 — Unspecified hand when metacarpals rather than digits affected
Code Hierarchy
└M87Osteonecrosis└M87.0Idiopathic aseptic necrosis of bone└M87.04Idiopathic aseptic necrosis of hand and fingers└M87.046Idiopathic aseptic necrosis of unspecified finger(s)
└M87.046Idiopathic aseptic necrosis of unspecified finger(s)