M87.036
BillableIdiopathic aseptic necrosis of unspecified ulna
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 ulna (forearm bone) without infection when the side is not specified or documented.
Coding Tips
- •Use this code only when laterality cannot be determined from available documentation
- •Query the provider if possible to obtain specific laterality information for more precise coding
Clinical Significance
Idiopathic aseptic necrosis of unspecified ulna represents bone death in the medial forearm when laterality is not documented, indicating a condition that can affect elbow and wrist function. This diagnosis requires orthopedic evaluation and management to prevent progression and maintain arm function.
Documentation Requirements
- ✓Documentation of aseptic necrosis involving ulna bone
- ✓Confirmation of idiopathic etiology without identifiable cause
- ✓Imaging studies showing bone necrosis in ulnar structures
- ✓Absence of specific laterality documentation in medical record
- ✓Exclusion of infectious causes through clinical evaluation
- ✓Elbow and forearm functional assessment and limitations
- ✓Treatment plan documentation including conservative or surgical options
- ✓Pain management documentation and functional impact
Commonly Confused Codes
Code Hierarchy
└M87Osteonecrosis└M87.0Idiopathic aseptic necrosis of bone└M87.03Idiopathic aseptic necrosis of radius, ulna and carpus└M87.036Idiopathic aseptic necrosis of unspecified ulna
└M87.036Idiopathic aseptic necrosis of unspecified ulna