2026 ICD-10-CM Diagnosis Code M02.29Postimmunization arthropathy, multiple sites

ICD-10-CM Codes›M00–M99›M00-M02›M02

ICD-10-CM M02.29
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

M02.29 is a billable ICD-10-CM diagnosis code for postimmunization arthropathy, multiple sites. 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. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified joint disorders.

Code Identity

ICD-10-CM Code
M02.29
Billable Status
Yes — Valid for Submission
Code Describes
Postimmunization arthropathy, multiple sites
Short Description
Postimmunization arthropathy, multiple sites
Same as the full description in the CMS dataset.
Parent Code
M02.2
Postimmunization arthropathy

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM00-M02Infectious arthropathies
CategoryM02Postinfective and reactive arthropathies
This CodeM02.29Postimmunization arthropathy, multiple sites

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.

    • Arthropathy
      • postimmunization
        • multiple site

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

Patient EducationClinical

Arthritis

If you feel pain and stiffness in your body or have trouble moving around, you might have arthritis. Any disorder that affects the joints is often called arthritis. Joints are places where two bones meet, such as your elbow or knee.

The full article covers:

  • What is arthritis?
  • What are the types of arthritis?
  • What are the symptoms of arthritis?
  • Who is more likely to get arthritis?
  • How is arthritis diagnosed?
  • What are the treatments for arthritis?

Read the full article at MedlinePlus

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

Convert M02.29 to ICD-9-CMHistory

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

ICD-9-CM
713.6 Arthrop w hypersen react
Approximate The match is approximate rather than exact.
ICD-9-CM
999.52 Ot serum react d/t vacc
ApproximateCombination The match is approximate, and more than one code can be needed to describe the source diagnosis. Confirm with contextual judgment.
ICD-9-CM
713.6 Arthrop w hypersen react
ApproximateCombination The match is approximate, and more than one code can be needed to describe the source diagnosis. Confirm with contextual judgment.

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 M02.29Overview

Is M02.29 (Postimmunization arthropathy) a billable code?

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

What MS-DRG does M02.29 group to?

When postimmunization arthropathy, multiple sites 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 M02.29?

Under the General Equivalence Mappings, postimmunization arthropathy, multiple sites converts to ICD-9-CM 713.6 (arthrop w hypersen react), 999.52 (ot serum react d/t vacc), and 713.6 (arthrop w hypersen react). The mapping is approximate, so confirm the match fits the documentation.

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.