M87.271
BillableOsteonecrosis due to previous trauma, right ankle
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 right ankle caused by a previous injury or trauma to that area.
Coding Tips
- •Confirm documentation specifies right ankle and that osteonecrosis is attributed to previous trauma rather than other causes
- •Note that ankle osteonecrosis codes (M87.27x) are distinct from tibia and fibula codes; verify correct anatomical site
Clinical Significance
Right ankle osteonecrosis following trauma significantly affects weight-bearing capacity and mobility, potentially leading to chronic pain and functional limitations. This condition often requires specialized orthopedic management and may progress to joint collapse without appropriate intervention.
Documentation Requirements
- ✓Specific identification of right ankle involvement
- ✓Documentation of previous trauma to right ankle area
- ✓Clinical or radiological evidence of bone necrosis in ankle structures
- ✓Assessment of weight-bearing capacity and gait impact
- ✓Current pain levels and range of motion limitations
- ✓Any associated complications or instability
- ✓Treatment history and response to interventions
- ✓Impact on mobility and activities of daily living
Commonly Confused Codes
M87.272 — Osteonecrosis due to previous trauma, left ankle (wrong laterality)M87.273 — Osteonecrosis due to previous trauma, unspecified ankle (when laterality is documented)M87.371 — Other secondary osteonecrosis, right ankle (non-traumatic secondary cause)M87.261 — Osteonecrosis due to previous trauma, right tibia (different anatomical area)S82.891A — Other fracture of right lower leg (acute fracture, not osteonecrosis)
Code Hierarchy
└M87Osteonecrosis└M87.2Osteonecrosis due to previous trauma└M87.27Osteonecrosis due to previous trauma, ankle, foot and toes└M87.271Osteonecrosis due to previous trauma, right ankle
└M87.271Osteonecrosis due to previous trauma, right ankle