2026 ICD-10-CM Diagnosis Code M34Systemic sclerosis [scleroderma]

ICD-10-CM Codes›M00–M99›M30-M36›M34

ICD-10-CM M34
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

M34 is a non-billable ICD-10-CM category code for systemic sclerosis [scleroderma], so it cannot be submitted on claims. Use a more specific code from this category instead, such as M34.0, M34.1, M34.2, and M34.81.

Code Identity

ICD-10-CM Code
M34
Billable Status
No — Non-Billable Category
Code Describes
Systemic sclerosis [scleroderma]
Short Description
Systemic sclerosis [scleroderma]
Same as the full description in the CMS dataset.
Chapter
M30-M36
Systemic connective tissue disorders

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM30-M36Systemic connective tissue disorders
CategoryM34Systemic sclerosis [scleroderma]
This CodeM34Systemic sclerosis [scleroderma]

Specific Coding for Systemic sclerosis [scleroderma]Overview

Non-specific codes like M34 require more characters. Use one of these billable codes instead:

  • Use M34.0 for Progressive systemic sclerosis

  • Use M34.1 for CR(E)ST syndrome

  • Use M34.2 for Systemic sclerosis induced by drug and chemical

  • M34.8 for Other forms of systemic sclerosis

  • Use M34.81 for Systemic sclerosis with lung involvement

  • Use M34.82 for Systemic sclerosis with myopathy

  • Use M34.83 for Systemic sclerosis with polyneuropathy

  • Use M34.89 for Other systemic sclerosis

  • Use M34.9 for Systemic sclerosis, unspecified

Tabular List NotesGuidance

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

Type 1 Excludes

  • circumscribed scleroderma L94.0
  • neonatal scleroderma P83.88

Patient EducationClinical

Scleroderma

Scleroderma means "hard skin." It's the name of an autoimmune disease that causes inflammation and thickening in the skin and other areas of the body. This inflammation causes you to have areas of tight, hard skin. Scleroderma may affect just one area of your body, or it can affect many systems in your body.

The full article covers:

  • What is scleroderma?
  • What are the types of scleroderma?
  • What causes scleroderma?
  • Who is more likely to develop scleroderma?
  • What are the symptoms of scleroderma?
  • How is scleroderma diagnosed?
  • What are the treatments for scleroderma?

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 M34Overview

Is M34 (Systemic sclerosis [scleroderma]) a billable code?

No. This is a category header that groups the codes for systemic sclerosis [scleroderma], and headers cannot be submitted on claims. Claims for systemic sclerosis [scleroderma] need a more specific code from this category, such as M34.0, M34.1, and M34.2.