2026 ICD-10-CM Diagnosis Code M24.50Contracture, unspecified joint

ICD-10-CM Codes›M00–M99›M20-M25›M24

ICD-10-CM M24.50
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

M24.50 is a billable ICD-10-CM diagnosis code for contracture, unspecified joint. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 564 through 566. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Acquired deformities (excluding foot).

Code Identity

ICD-10-CM Code
M24.50
Billable Status
Yes — Valid for Submission
Code Describes
Contracture, unspecified joint
Short Description
Contracture, unspecified joint
Same as the full description in the CMS dataset.
Parent Code
M24.5
Contracture of joint

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM20-M25Other joint disorders
CategoryM24Other specific joint derangements
This CodeM24.50Contracture, unspecified joint

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Autosomal recessive intellectual disability, motor dysfunction, multiple joint contracture syndrome
  • Childhood-onset progressive contractures, limb girdle weakness, muscle dystrophy syndrome
  • Contracture of joint
  • Contracture of joint following injury
  • Contracture of joint of spine
  • Contracture of multiple joints
  • Contracture scar
  • Deformity after injury
  • Deletion of part of chromosome 5
  • Deletion of part of long arm of chromosome 5
  • Hereditary inclusion body myopathy, joint contracture, ophthalmoplegia syndrome
  • Joint contractures, developmental delay, Pierre Robin syndrome
  • Keloid scar
  • Myopathy with cytoplasmic inclusions
  • Progressive flexion contracture of joint
  • Robin sequence
  • X-linked keloid scarring, reduced joint mobility, increased optic cup-to-disc ratio syndrome

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Contraction(s), contracture, contracted
      • joint (abduction) (acquired) (adduction) (flexion) (rotation)

Clinical ClassificationClinical

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

CCSR MUS023
Acquired deformities (excluding foot)
Default principal diagnosis: inpatient Yes · outpatient Yes

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.

Convert M24.50 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
718.40 Jt contracture-unspec
Approximate The match is approximate rather than exact.
ICD-9-CM
718.48 Jt contracture-jt NEC
Approximate The match is approximate rather than exact.
ICD-9-CM
718.49 Jt contracture-mult jts
Approximate The match is approximate rather than exact.

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 M24.50Overview

Is M24.50 (Contracture of joint) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report contracture, unspecified joint on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does M24.50 group to?

When contracture, unspecified joint is the principal diagnosis on an inpatient stay, it groups to MS-DRG 564, 565, 566, with relative weights from 0.7493 to 1.5436 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of M24.50?

Under the General Equivalence Mappings, contracture, unspecified joint converts to ICD-9-CM 718.40 (jt contracture-unspec), 718.48 (jt contracture-jt NEC), and 718.49 (jt contracture-mult jts). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.