M87
Non-billableOsteonecrosis
Osteonecrosis
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Includes
Conditions included under this code
- avascular necrosis of bone
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- •arthropathic psoriasisL40.5
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •compartment syndrome (traumatic)A-)T79
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
Use Additional Code
Additional codes that should follow this code
Child Codes (6)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(33)
UMLS
- AVN (avascular necrosis) of boneC0027543
- Aseptic necrosisC0027543
- Aseptic necrosis of boneC0027543
- Avascular Necrosis of BoneC0027543
- Avascular necrosisC0027543
- Avascular necrosis of boneC0027543
- Avascular necrosis of bone (disorder)C0027543
- Bone Avascular NecrosisC0027543
- Bone necrosisC0027543
- Death of bone due to decreased blood supplyC0027543
- Ischaemic bone necrosisC0027543
- Ischemic bone necrosisC0027543
- Necrosis, Avascular, of BoneC0027543
- OsteonecrosisC0027543
- avascular bone necrosisC0027543
- avascular bones necrosisC0027543
- avascular necrosisC0027543
- avascular necrosis boneC0027543
- avascular necrosis of boneC0027543
- ischaemic necrosisC0027543
- ischemic necrosisC0027543
- Bone NecrosesC0029445
- Bone NecrosisC0029445
- Necroses, BoneC0029445
- Necrosis boneC0029445
- Necrosis of bone NOSC0029445
- Necrosis, BoneC0029445
- OsteochondronecrosisC0029445
- OsteonecrosesC0029445
- Osteonecrosis, unspecifiedC0029445
- bone necrosisC0029445
- necrosis of boneC0029445
- osteonecrosisC0029445
Frequently Asked Questions
What is the ICD-10 code for osteonecrosis?
The ICD-10-CM code for osteonecrosis is M87. The full clinical description is "Osteonecrosis". M87 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code M87 mean?
ICD-10-CM code M87 represents “Osteonecrosis”. It is classified under Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue and is a non-billable header code. Use a more specific child code for billing purposes.
Is M87 a billable code?
No, M87 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 6 child codes under M87.
What chapter is M87 in?
M87 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).
What codes cannot be used with M87?
M87 has Excludes1 notes indicating codes that cannot be used together with it, including: postprocedural osteopathies (M96.-); juvenile osteonecrosis (M91-M92); osteochondropathies (M90-M93).
What are the subcategories under M87?
M87 has 6 child codes, including: M87.0 (Idiopathic aseptic necrosis of bone), M87.1 (Osteonecrosis due to drugs), M87.2 (Osteonecrosis due to previous trauma), M87.3 (Other secondary osteonecrosis), and 2 more.
Are additional codes required with M87?
Yes, when using M87, also report: major osseous defect, if applicable (M89.7-).
What are the UMLS CUIs for M87?
M87 is linked to 2 UMLS Concept Unique Identifiers: C0027543, C0029445. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does M87 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like osteonecrosis affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of M87?
M87 maps to the ICD-11 code: FB81.Z (Osteonecrosis, unspecified).
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.