2026 ICD-10-CM Diagnosis Code M02Postinfective and reactive arthropathies

ICD-10-CM Codes›M00–M99›M00-M02›M02

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

M02 is a non-billable ICD-10-CM category code for postinfective and reactive arthropathies, so it cannot be submitted on claims. Use a more specific code from this category instead, such as M02.00, M02.011, M02.012, and M02.019.

Code Identity

ICD-10-CM Code
M02
Billable Status
No — Non-Billable Category
Code Describes
Postinfective and reactive arthropathies
Short Description
Postinfective and reactive arthropathies
Same as the full description in the CMS dataset.
Chapter
M00-M02
Infectious arthropathies

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM00-M02Infectious arthropathies
CategoryM02Postinfective and reactive arthropathies
This CodeM02Postinfective and reactive arthropathies

Specific Coding for Postinfective and reactive arthropathiesOverview

Non-specific codes like M02 require more characters. Use one of these billable codes instead:

  • M02.0 for Arthropathy following intestinal bypass

  • Use M02.00 for Arthropathy following intestinal bypass, unspecified site

  • M02.01 for Arthropathy following intestinal bypass, shoulder

  • M02.02 for Arthropathy following intestinal bypass, elbow

  • M02.03 for Arthropathy following intestinal bypass, wrist

  • M02.04 for Arthropathy following intestinal bypass, hand

  • M02.05 for Arthropathy following intestinal bypass, hip

  • M02.06 for Arthropathy following intestinal bypass, knee

  • M02.07 for Arthropathy following intestinal bypass, ankle and foot

  • Use M02.08 for Arthropathy following intestinal bypass, vertebrae

  • Use M02.09 for Arthropathy following intestinal bypass, multiple sites

  • M02.1 for Postdysenteric arthropathy

  • Use M02.10 for Postdysenteric arthropathy, unspecified site

  • M02.11 for Postdysenteric arthropathy, shoulder

  • M02.12 for Postdysenteric arthropathy, elbow

  • M02.13 for Postdysenteric arthropathy, wrist

  • M02.14 for Postdysenteric arthropathy, hand

  • M02.15 for Postdysenteric arthropathy, hip

  • M02.16 for Postdysenteric arthropathy, knee

  • M02.17 for Postdysenteric arthropathy, ankle and foot

  • Use M02.18 for Postdysenteric arthropathy, vertebrae

  • Use M02.19 for Postdysenteric arthropathy, multiple sites

  • M02.2 for Postimmunization arthropathy

  • Use M02.20 for Postimmunization arthropathy, unspecified site

  • M02.21 for Postimmunization arthropathy, shoulder

  • M02.22 for Postimmunization arthropathy, elbow

  • M02.23 for Postimmunization arthropathy, wrist

  • M02.24 for Postimmunization arthropathy, hand

  • M02.25 for Postimmunization arthropathy, hip

  • M02.26 for Postimmunization arthropathy, knee

  • M02.27 for Postimmunization arthropathy, ankle and foot

  • Use M02.28 for Postimmunization arthropathy, vertebrae

  • Use M02.29 for Postimmunization arthropathy, multiple sites

  • M02.3 for Reiter's disease

  • Use M02.30 for Reiter's disease, unspecified site

  • M02.31 for Reiter's disease, shoulder

  • M02.32 for Reiter's disease, elbow

  • M02.33 for Reiter's disease, wrist

  • M02.34 for Reiter's disease, hand

  • M02.35 for Reiter's disease, hip

  • M02.36 for Reiter's disease, knee

  • M02.37 for Reiter's disease, ankle and foot

  • Use M02.38 for Reiter's disease, vertebrae

  • Use M02.39 for Reiter's disease, multiple sites

  • M02.8 for Other reactive arthropathies

  • Use M02.80 for Other reactive arthropathies, unspecified site

  • M02.81 for Other reactive arthropathies, shoulder

  • M02.82 for Other reactive arthropathies, elbow

  • M02.83 for Other reactive arthropathies, wrist

  • M02.84 for Other reactive arthropathies, hand

  • M02.85 for Other reactive arthropathies, hip

  • M02.86 for Other reactive arthropathies, knee

  • M02.87 for Other reactive arthropathies, ankle and foot

  • Use M02.88 for Other reactive arthropathies, vertebrae

  • Use M02.89 for Other reactive arthropathies, multiple sites

  • Use M02.9 for Reactive arthropathy, unspecified

Tabular List NotesGuidance

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

Code First

  • underlying disease, such as:
  • congenital syphilis Clutton's joints A50.5
  • enteritis due to Yersinia enterocolitica A04.6
  • infective endocarditis I33.0
  • viral hepatitis B15 B19

Type 1 Excludes

  • Behçet's disease M35.2
  • direct infections of joint in infectious and parasitic diseases classified elsewhere M01
  • postmeningococcal arthritis A39.84
  • mumps arthritis B26.85
  • rubella arthritis B06.82
  • syphilis arthritis late A52.77
  • rheumatic fever I00
  • tabetic arthropathy Charcôt's A52.16

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.

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 M02Overview

Is M02 (Postinfective and reactive arthropathies) a billable code?

No. This is a category header that groups the codes for postinfective and reactive arthropathies, and headers cannot be submitted on claims. Claims for postinfective and reactive arthropathies need a more specific code from this category, such as M02.00, M02.011, and M02.012.