M87.0 ICD-10-CA subcategory: Idiopathic aseptic necrosis of bone
M87.0 isn’t a code on its own. Choose one of the 10 codes beneath it, the one the documentation supports.
Official description
M87.0Idiopathic aseptic necrosis of bone
ICD-10-CA · Canada · Also written M870
Codes in M87.0
M87.0 isn’t a code on its own. Open the code that matches what the note documents.
M87.00Idiopathic aseptic necrosis of bone, multiple sitesM87.01Idiopathic aseptic necrosis of bone, shoulder regionM87.02Idiopathic aseptic necrosis of bone, upper armM87.03Idiopathic aseptic necrosis of bone, forearmM87.04Idiopathic aseptic necrosis of bone, handM87.05Idiopathic aseptic necrosis of bone, pelvic region and thighM87.06Idiopathic aseptic necrosis of bone, lower legM87.07Idiopathic aseptic necrosis of bone, ankle and footM87.08Idiopathic aseptic necrosis of bone, other siteM87.09Idiopathic aseptic necrosis of bone, unspecified siteNotes for M87.0
As CIHI prints them, with any note M87.0 takes from the headings above it.
Includes
- Avascular necrosis of boneFrom M87 Osteonecrosis
Excludes
Conditions classified elsewhere.
- Osteochondropathies (M91-M93)osteonecrosis of jaw (drug-induced) (radiation-induced) (K10.2)From M87 Osteonecrosis
- Postprocedural osteopathies (M96.-)From M86-M90 Other osteopathies
- Certain:• conditions originating in the perinatal period (P00-P96)• disorders of the temporomandibular joint (K07.6)• infectious and parasitic diseases (A00-B99)compartment syndrome (T79.6)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99)
Note
- [To review the anatomical site captured in the 5th character subclassification see Chapter XIII]
- The following fifth characters represent the following sites of involvement:0 Multiple sites1 Shoulder region: clavical , scapula — joint acromioclavicular, glenohumeral, sternoclavicular2 Upper arm: humerus — elbow joint,3 Forearm: radius , ulna — wrist joint,4 Hand: carpus, fingers, metacarpus — joints between these bones,5 Pelvic region and thigh: buttock , femur , pelvis — joint hip , sacroiliac6 Lower leg: fibula , tibia — knee joint7 Ankle and foot: metatarsus, tarsus, toes — other joints in foot8 Other:head neck ribs skull trunk vertebral column9 Site unspecifiedFrom Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99)
Where M87.0 sits
- 1ChapterChapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99)
- 2Block M80-M94Osteopathies and chondropathies
- 3Block M86-M90Other osteopathies
- 4Category M87Osteonecrosis
- 5Subcategory M87.0Idiopathic aseptic necrosis of bone
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
Is M87.0 a valid ICD-10-CA code?
No. M87.0 (Idiopathic aseptic necrosis of bone) is a subcategory heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 10 codes; record the one the documentation supports.
Where is M87.0 in ICD-10-CA?
M87.0 sits under M87 Osteonecrosis, within M86-M90 Other osteopathies, within M80-M94 Osteopathies and chondropathies, within Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99).
What coding notes apply to M87.0?
ICD-10-CA lists Note, Includes, Excludes notes for M87.0, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.