M87.177
BillableOsteonecrosis due to drugs, right toe(s)
HCC Category Mapping
V24HCC 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
Bone death in the toes of the right foot caused by medication side effects.
Coding Tips
- •Document which medication caused the osteonecrosis and link it with a drug adverse effect code if applicable
- •Distinguish between single toe involvement and multiple toes; this code indicates right toe(s)
Clinical Significance
Drug-induced osteonecrosis of right toe(s) represents medication-related bone death in the digits, requiring immediate evaluation of causative medications and potential therapy modifications. This condition can significantly impact weight-bearing and ambulation, potentially progressing to deformity or functional disability without appropriate management.
Documentation Requirements
- ✓Specific documentation of right toe(s) involvement
- ✓Clear identification of drug-induced etiology
- ✓Documentation of causative medication(s) when known
- ✓Imaging evidence of toe bone necrosis
- ✓Timeline relationship between drug exposure and bone death
- ✓Assessment of impact on weight-bearing and ambulation
- ✓Number of toes affected if multiple
- ✓Medication review and modification planning
Commonly Confused Codes
M87.077 — Idiopathic osteonecrosis of right toe(s) (no drug cause)M87.277 — Trauma-related osteonecrosis of right toe(s) (injury-related)M87.377 — Other secondary osteonecrosis of right toe(s) (different cause)M87.178 — Drug-induced osteonecrosis of left toe(s) (wrong laterality)L97.4 — Non-pressure chronic ulcer of right heel and midfoot (different pathology)
Code Hierarchy
└M87Osteonecrosis└M87.1Osteonecrosis due to drugs└M87.17Osteonecrosis due to drugs, ankle, foot and toes└M87.177Osteonecrosis due to drugs, right toe(s)
└M87.177Osteonecrosis due to drugs, right toe(s)