2026 ICD-10-CM Diagnosis Code M87Osteonecrosis

ICD-10-CM Codes›M00–M99›M86-M90›M87

ICD-10-CM M87
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

M87 is a non-billable ICD-10-CM category code for osteonecrosis, so it cannot be submitted on claims. Use a more specific code from this category instead, such as M87.00, M87.011, M87.012, and M87.019.

Code Identity

ICD-10-CM Code
M87
Billable Status
No — Non-Billable Category
Code Describes
Osteonecrosis
Short Description
Osteonecrosis
Same as the full description in the CMS dataset.
Chapter
M86-M90
Other osteopathies

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM86-M90Other osteopathies
CategoryM87Osteonecrosis
This CodeM87Osteonecrosis

Specific Coding for OsteonecrosisOverview

Non-specific codes like M87 require more characters. Use one of these billable codes instead:

  • M87.0 for Idiopathic aseptic necrosis of bone

  • Use M87.00 for Idiopathic aseptic necrosis of unspecified bone

  • M87.01 for Idiopathic aseptic necrosis of shoulder

  • M87.02 for Idiopathic aseptic necrosis of humerus

  • M87.03 for Idiopathic aseptic necrosis of radius, ulna and carpus

  • M87.04 for Idiopathic aseptic necrosis of hand and fingers

  • M87.05 for Idiopathic aseptic necrosis of pelvis and femur

  • M87.06 for Idiopathic aseptic necrosis of tibia and fibula

  • M87.07 for Idiopathic aseptic necrosis of ankle, foot and toes

  • Use M87.08 for Idiopathic aseptic necrosis of bone, other site

  • Use M87.09 for Idiopathic aseptic necrosis of bone, multiple sites

  • M87.1 for Osteonecrosis due to drugs

  • Use M87.10 for Osteonecrosis due to drugs, unspecified bone

  • M87.11 for Osteonecrosis due to drugs, shoulder

  • M87.12 for Osteonecrosis due to drugs, humerus

  • M87.13 for Osteonecrosis due to drugs of radius, ulna and carpus

  • M87.14 for Osteonecrosis due to drugs, hand and fingers

  • M87.15 for Osteonecrosis due to drugs, pelvis and femur

  • M87.16 for Osteonecrosis due to drugs, tibia and fibula

  • M87.17 for Osteonecrosis due to drugs, ankle, foot and toes

  • M87.18 for Osteonecrosis due to drugs, other site

  • Use M87.19 for Osteonecrosis due to drugs, multiple sites

  • M87.2 for Osteonecrosis due to previous trauma

  • Use M87.20 for Osteonecrosis due to previous trauma, unspecified bone

  • M87.21 for Osteonecrosis due to previous trauma, shoulder

  • M87.22 for Osteonecrosis due to previous trauma, humerus

  • M87.23 for Osteonecrosis due to previous trauma of radius, ulna and carpus

  • M87.24 for Osteonecrosis due to previous trauma, hand and fingers

  • M87.25 for Osteonecrosis due to previous trauma, pelvis and femur

  • M87.26 for Osteonecrosis due to previous trauma, tibia and fibula

  • M87.27 for Osteonecrosis due to previous trauma, ankle, foot and toes

  • Use M87.28 for Osteonecrosis due to previous trauma, other site

  • Use M87.29 for Osteonecrosis due to previous trauma, multiple sites

  • M87.3 for Other secondary osteonecrosis

  • Use M87.30 for Other secondary osteonecrosis, unspecified bone

  • M87.31 for Other secondary osteonecrosis, shoulder

  • M87.32 for Other secondary osteonecrosis, humerus

  • M87.33 for Other secondary osteonecrosis of radius, ulna and carpus

  • M87.34 for Other secondary osteonecrosis, hand and fingers

  • M87.35 for Other secondary osteonecrosis, pelvis and femur

  • M87.36 for Other secondary osteonecrosis, tibia and fibula

  • M87.37 for Other secondary osteonecrosis, ankle and foot

  • Use M87.38 for Other secondary osteonecrosis, other site

  • Use M87.39 for Other secondary osteonecrosis, multiple sites

  • M87.8 for Other osteonecrosis

  • Use M87.80 for Other osteonecrosis, unspecified bone

  • M87.81 for Other osteonecrosis, shoulder

  • M87.82 for Other osteonecrosis, humerus

  • M87.83 for Other osteonecrosis of radius, ulna and carpus

  • M87.84 for Other osteonecrosis, hand and fingers

  • M87.85 for Other osteonecrosis, pelvis and femur

  • M87.86 for Other osteonecrosis, tibia and fibula

  • M87.87 for Other osteonecrosis, ankle, foot and toes

  • Use M87.88 for Other osteonecrosis, other site

  • Use M87.89 for Other osteonecrosis, multiple sites

  • Use M87.9 for Osteonecrosis, unspecified

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Includes

  • avascular necrosis of bone

Use Additional Code

  • code to identify major osseous defect, if applicable M89.7

Type 1 Excludes

  • juvenile osteonecrosis M91 M92
  • osteochondropathies M90 M93

Clinical InformationClinical

  • Bisphosphonate-Associated Osteonecrosis of the Jaw

    necrotic jaws or other maxillofacial skeleton necrosis associated with bisphosphonate use (see bisphosphonates). injury, dental procedures, and trauma can trigger the necrotic process.

  • Osteonecrosis

    death of a bone or part of a bone, either atraumatic or posttraumatic.

Patient EducationClinical

Osteonecrosis

Osteonecrosis is a disease caused by reduced blood flow to bones in the joints. In people with healthy bones, new bone is always replacing old bone. In osteonecrosis, the lack of blood causes the bone to break down faster than the body can make enough new bone. The bone starts to die and may break down.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About M87Overview

Is M87 (Osteonecrosis) a billable code?

No. This is a category header that groups the codes for osteonecrosis, and headers cannot be submitted on claims. Claims for osteonecrosis need a more specific code from this category, such as M87.00, M87.011, and M87.012.