2027 ICD-10-CM Diagnosis Code M24.69Ankylosis, other specified joint

ICD-10-CM Codes›M00–M99›M20-M25›M24

ICD-10-CM M24.69
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

M24.69 is a billable ICD-10-CM diagnosis code for ankylosis, other specified joint. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 553 through 554. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified joint disorders.

Code Identity

ICD-10-CM Code
M24.69
Billable Status
Yes — Valid for Submission
Code Describes
Ankylosis, other specified joint
Short Description
Ankylosis, other specified joint
Same as the full description in the CMS dataset.
Parent Code
M24.6
Ankylosis of joint

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM20-M25Other joint disorders
CategoryM24Other specific joint derangements
This CodeM24.69Ankylosis, other specified joint

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to M24.69: its own notes plus those printed at M24.6, M24, block M00-M25, block M20-M25, 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.

From Block M00-M25 applies to 2,249 codes
  • Disorders affecting predominantly peripheral (limb) joints

Excludes1

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

From M24.6 Ankylosis of joint applies to 26 codes
  • stiffness of joint without ankylosis (M25.6-)
From M24 Other specific joint derangements applies to 205 codes
  • current injury - see injury of joint by body region

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 M24.6 Ankylosis of joint applies to 26 codes
From M24 Other specific joint derangements applies to 205 codes
From Block M20-M25 Other joint disorders applies to 719 codes
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.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name M24.69, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming M24.69: they are not reported together with it, unless the two conditions are unrelated.

  • M25.6 Stiffness of joint, not elsewhere classified
    ankylosis of joint (M24.6-) names M24.6-, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MUS007
Other specified joint disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Ankylosis

    fixation and immobility of a joint.

Patient EducationClinical

Joint Disorders

Your joints are places where two or more bones come together. Your shoulders, elbows, hips, knees, and knuckles are all joints. Your spine has joints, too.

The full article covers:

  • What are joints?
  • What are joint disorders?
  • What diseases can affect the joints?
  • What types of joint disorders happen from sudden injuries?
  • What types of joint disorders happen from overuse?
  • How can I keep my joints healthy?

Read the full article at MedlinePlus

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

Code History & ChangesHistory

Replacement M24.69 replaces the following previously assigned code(s):

  • M24.60 - Ankylosis, unspecified joint
FY 2021AddedAdded to the ICD-10-CM code setEffective October 1, 2020.
FY 2022–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About M24.69Overview

What is the ICD-10 code for ankylosis, other specified joint?

The ICD-10-CM code for ankylosis, other specified joint is M24.69 (sometimes written as M2469). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is M24.69 (Ankylosis of joint) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report ankylosis, other specified joint on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does M24.69 group to?

When ankylosis, other specified joint is the principal diagnosis on an inpatient stay, it groups to MS-DRG 554, 553, with relative weights from 0.8328 to 1.2492 depending on complications. Higher weights mean higher Medicare reimbursement.

Can M24.69 be reported with a code from M25.6?

Not as a rule. The Excludes1 note at M24.6, which applies to M24.69, lists "stiffness of joint without ankylosis (M25.6-)". 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).