2026 ICD-10-CM Diagnosis Code M25.08Hemarthrosis, other specified site

ICD-10-CM Codes›M00–M99›M20-M25›M25

ICD-10-CM M25.08
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

M25.08 is a billable ICD-10-CM diagnosis code for hemarthrosis, other specified site. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 553 through 554. Coders also document this condition as hemarthrosis of multiple sites. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified joint disorders.

Code Identity

ICD-10-CM Code
M25.08
Billable Status
Yes — Valid for Submission
Code Describes
Hemarthrosis, other specified site
Short Description
Hemarthrosis, other specified site
Same as the full description in the CMS dataset.
Parent Code
M25.0
Hemarthrosis

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM20-M25Other joint disorders
CategoryM25Other joint disorder, not elsewhere classified
This CodeM25.08Hemarthrosis, other specified site

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Hemarthrosis of multiple sites
  • Hemarthrosis of sacroiliac joint
  • Hemarthrosis of tibiofibular joint
  • Hemarthrosis of vertebral joint

Tabular List NotesGuidance

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

Inclusion Terms

  • Hemarthrosis, vertebrae

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.

    • Hemarthrosis(nontraumatic)
      • specified joint NEC
    • Hemarthrosis(nontraumatic)
      • vertebrae

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

  • Hemarthrosis

    bleeding into the joints. it may arise from trauma or spontaneously in patients with hemophilia.

  • Hemarthrosis

    bleeding into 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.

Convert M25.08 to ICD-9-CMHistory

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

ICD-9-CM
719.18 Hemarthrosis-jt NEC
Exact Match The mapping is direct, with no qualifiers.

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 M25.08Overview

Is M25.08 (Hemarthrosis) a billable code?

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

What MS-DRG does M25.08 group to?

When hemarthrosis, other specified site is the principal diagnosis on an inpatient stay, it groups to MS-DRG 553, 554, with relative weights from 0.8301 to 1.2963 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of M25.08?

Under the General Equivalence Mappings, hemarthrosis, other specified site converts to ICD-9-CM 719.18 (hemarthrosis-jt NEC). The mapping is a direct match.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.