M87.059
Billable codeIdiopathic aseptic necrosis of unspecified femur
The ICD-10 code for idiopathic aseptic necrosis of unspecified femur is M87.059.
Clinical notes
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Idiopathic aseptic necrosis of hip NOS
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •Laterality-specific codes exist for this condition — confirm the affected side is documented.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- M87.050Idiopathic aseptic necrosis of pelvis
- M87.051Idiopathic aseptic necrosis of right femur
- M87.052Idiopathic aseptic necrosis of left femur
- M87.059Idiopathic aseptic necrosis of unspecified femur
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 73342Approximate match
- 73343Approximate match
Associated MS-DRGs
M87.059 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.