M87.00 — Idiopathic aseptic necrosis of unspecified bone
M87.00 is a billable, specific ICD-10-CM code for idiopathic aseptic necrosis of unspecified bone. It is valid for submission on a claim.
Risk adjustment
M87.00 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 92 Bone/Joint/Muscle/Severe Soft Tissue Infections/Necrosis0.479 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
M87.00 is named in 6 Medicare coverage policies — 0 listing it as supporting medical necessity, and 6 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A58865Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A58893Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A59374Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A59434Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
How M87.00 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to M87.00.
- Osteonecrosis›idiopathic aseptic
- Necrosis, necrotic›bone›aseptic or avascular›idiopathic
Related codes at this level
Codes that share M87.0. If M87.00 is not quite right, the correct code is usually one of these.
- M87.01Idiopathic aseptic necrosis of shoulder
- M87.02Idiopathic aseptic necrosis of humerus
- M87.03Idiopathic aseptic necrosis of radius, ulna and carpus
- M87.04Idiopathic aseptic necrosis of hand and fingers
- M87.05Idiopathic aseptic necrosis of pelvis and femur
- M87.06Idiopathic aseptic necrosis of tibia and fibula
- M87.07Idiopathic aseptic necrosis of ankle, foot and toes
- M87.08Idiopathic aseptic necrosis of bone, other site
- M87.09Idiopathic aseptic necrosis of bone, multiple sites
Questions about M87.00
- Is M87.00 a billable ICD-10-CM code?
- Yes. M87.00 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does M87.00 sit in the tabular list?
- Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Other osteopathies (M86-M90).