2027 ICD-10-CM Diagnosis Code M90Osteopathies in diseases classified elsewhere

ICD-10-CM Codes›M00–M99›M86-M90›M90

ICD-10-CM M90
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

M90 is a non-billable ICD-10-CM category code for osteopathies in diseases classified elsewhere, so it cannot be submitted on claims. Use a more specific code from this category instead, such as M90.50, M90.511, M90.512, and M90.519.

Code Identity

ICD-10-CM Code
M90
Billable Status
No — Non-Billable Category
Code Describes
Osteopathies in diseases classified elsewhere
Short Description
Osteopathies in diseases classified elsewhere
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
CategoryM90Osteopathies in diseases classified elsewhere
This CodeM90Osteopathies in diseases classified elsewhere

Specific Coding for Osteopathies in diseases classified elsewhereOverview

Non-specific codes like M90 require more characters. Use one of these billable codes instead:

  • M90.5 for Osteonecrosis in diseases classified elsewhere

  • Use M90.50 for Osteonecrosis in diseases classified elsewhere, unspecified site

  • M90.51 for Osteonecrosis in diseases classified elsewhere, shoulder

  • M90.52 for Osteonecrosis in diseases classified elsewhere, upper arm

  • M90.53 for Osteonecrosis in diseases classified elsewhere, forearm

  • M90.54 for Osteonecrosis in diseases classified elsewhere, hand

  • M90.55 for Osteonecrosis in diseases classified elsewhere, thigh

  • M90.56 for Osteonecrosis in diseases classified elsewhere, lower leg

  • M90.57 for Osteonecrosis in diseases classified elsewhere, ankle and foot

  • Use M90.58 for Osteonecrosis in diseases classified elsewhere, other site

  • Use M90.59 for Osteonecrosis in diseases classified elsewhere, multiple sites

  • M90.6 for Osteitis deformans in neoplastic diseases

  • Use M90.60 for Osteitis deformans in neoplastic diseases, unspecified site

  • M90.61 for Osteitis deformans in neoplastic diseases, shoulder

  • M90.62 for Osteitis deformans in neoplastic diseases, upper arm

  • M90.63 for Osteitis deformans in neoplastic diseases, forearm

  • M90.64 for Osteitis deformans in neoplastic diseases, hand

  • M90.65 for Osteitis deformans in neoplastic diseases, thigh

  • M90.66 for Osteitis deformans in neoplastic diseases, lower leg

  • M90.67 for Osteitis deformans in neoplastic diseases, ankle and foot

  • Use M90.68 for Osteitis deformans in neoplastic diseases, other site

  • Use M90.69 for Osteitis deformans in neoplastic diseases, multiple sites

  • M90.8 for Osteopathy in diseases classified elsewhere

  • Use M90.80 for Osteopathy in diseases classified elsewhere, unspecified site

  • M90.81 for Osteopathy in diseases classified elsewhere, shoulder

  • M90.82 for Osteopathy in diseases classified elsewhere, upper arm

  • M90.83 for Osteopathy in diseases classified elsewhere, forearm

  • M90.84 for Osteopathy in diseases classified elsewhere, hand

  • M90.85 for Osteopathy in diseases classified elsewhere, thigh

  • M90.86 for Osteopathy in diseases classified elsewhere, lower leg

  • M90.87 for Osteopathy in diseases classified elsewhere, ankle and foot

  • Use M90.88 for Osteopathy in diseases classified elsewhere, other site

  • Use M90.89 for Osteopathy in diseases classified elsewhere, multiple sites

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to M90: 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.

Excludes1

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

On M90 itself
  • osteochondritis, osteomyelitis, and osteopathy (in):
  • cryptococcosis (B45.3)
  • diabetes mellitus (E08-E13 with .69-)
  • gonococcal (A54.43)
  • neurogenic syphilis (A52.11)
  • renal osteodystrophy (N25.0)
  • salmonellosis (A02.24)
  • secondary syphilis (A51.46)
  • syphilis (late) (A52.77)
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)

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.

Patient EducationClinical

Bone Diseases

Your bones help you move, give you shape and support your body. They are living tissues that rebuild constantly throughout your life. During childhood and your teens, your body adds new bone faster than it removes old bone. After about age 20, you can lose bone faster than you make bone.

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 M90Overview

What is the ICD-10 code for osteopathies in diseases classified elsewhere?

M90 is the ICD-10-CM category for osteopathies in diseases classified elsewhere, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is M90 (Osteopathies in diseases classified elsewhere) a billable code?

No. This is a category header that groups the codes for osteopathies in diseases classified elsewhere, and headers cannot be submitted on claims. Claims for osteopathies in diseases classified elsewhere need a more specific code from this category, such as M90.50, M90.511, and M90.512.

Can M90 be reported with B45.3?

Not as a rule. The Excludes1 note on M90 lists "cryptococcosis (B45.3)". 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).