M87.171
Billable codeOsteonecrosis due to drugs, right ankle
The ICD-10 code for osteonecrosis due to drugs, right ankle is M87.171.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- M87.172Osteonecrosis due to drugs, left ankle
- M87.173Osteonecrosis due to drugs, unspecified ankle
- M87.174Osteonecrosis due to drugs, right foot
- M87.175Osteonecrosis due to drugs, left foot
- M87.176Osteonecrosis due to drugs, unspecified foot
- M87.177Osteonecrosis due to drugs, right toe(s)
- M87.178Osteonecrosis due to drugs, left toe(s)
- M87.179Osteonecrosis due to drugs, unspecified toe(s)
- M87.171Osteonecrosis due to drugs, right ankle
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 73349Approximate match
Associated MS-DRGs
M87.171 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.