2027 ICD-10-CM Diagnosis Code M87Osteonecrosis

ICD-10-CM Codes›M00–M99›M86-M90›M87

ICD-10-CM M87
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

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

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to M87: its own notes plus those printed at block M86-M90 and Chapter 13. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

  • avascular necrosis of bone

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

On M87 itself
  • juvenile osteonecrosis (M91-M92)
  • osteochondropathies (M90-M93)
From Block M86-M90 Other osteopathies applies to 732 codes
  • postprocedural osteopathies (M96.-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 13 (M00-M99) Diseases of the musculoskeletal system and connective tissue applies to 6,687 codes
  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

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

Notes

General instructions on how these codes are used.

From Chapter 13 (M00-M99) Diseases of the musculoskeletal system and connective tissue applies to 6,687 codes
  • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name M87, its category, or a range that includes it.

Code First 2

These codes say to code first a condition named in the note, and M87 is one of the conditions named.

  • M89.7 Major osseous defect
    aseptic necrosis of bone (M87.-)
  • M89.7 Major osseous defect
    osteonecrosis (M87.-)

Clinical InformationClinical

  • 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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About M87Overview

What is the ICD-10 code for osteonecrosis?

M87 is the ICD-10-CM category for osteonecrosis, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

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.

Can M87 be reported with a code from M96?

Not as a rule. The Excludes1 note at block M86-M90, which applies to M87, lists "postprocedural osteopathies (M96.-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

Does M87 need an additional code?

When the condition applies, yes. The Use Additional Code note reads: code to identify major osseous defect, if applicable (M89.7-). The additional code is reported after M87.