2026 ICD-10-CM Diagnosis Code M35.00Sjogren syndrome, unspecified

ICD-10-CM Codes›M00–M99›M30-M36›M35

ICD-10-CM M35.00
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

M35.00 is a billable ICD-10-CM diagnosis code for sjogren syndrome, unspecified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 545 through 547. Coders also document this condition as pediatric onset Sjögren syndrome. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Systemic lupus erythematosus and connective tissue disorders.

Code Identity

ICD-10-CM Code
M35.00
Billable Status
Yes — Valid for Submission
Code Describes
Sjogren syndrome, unspecified
Short Description
Sjogren syndrome, unspecified
Same as the full description in the CMS dataset.
Parent Code
M35.0
Sjogren syndrome

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM30-M36Systemic connective tissue disorders
CategoryM35Other systemic involvement of connective tissue
This CodeM35.00Sjogren syndrome, unspecified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Pediatric onset Sjögren syndrome
  • Primary Sjögren's syndrome
  • Secondary Sjögren's syndrome
  • Sjögren's 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.

    • Syndrome
      • Sjögren

Clinical ClassificationClinical

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

CCSR MUS024
Systemic lupus erythematosus and connective tissue disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Sjogren's Syndrome

Sjogren's syndrome, also called Sjogren's disease, is a chronic (long-lasting) autoimmune disease. When you have an autoimmune disease, your immune system attacks healthy tissues and organs by mistake. In Sjogren's syndrome, your immune system attacks the glands that make moisture in the eyes, mouth, and other parts of the body.

The full article covers:

  • What is Sjogren's syndrome?
  • What causes Sjogren's syndrome?
  • Who is more likely to develop Sjogren's syndrome?
  • What are the symptoms of Sjogren's syndrome?
  • How is Sjogren's syndrome diagnosed?
  • What are the treatments for Sjogren's syndrome?

Read the full article at MedlinePlus

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

Convert M35.00 to ICD-9-CMHistory

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

ICD-9-CM
710.2 Sicca syndrome
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 2017–2021No changes
FY 2022RevisedCode revised
FY 2023–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About M35.00Overview

Is M35.00 (Sjogren syndrome) a billable code?

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

What MS-DRG does M35.00 group to?

When sjogren syndrome, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 545, 546, 547, with relative weights from 0.8362 to 2.4817 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of M35.00?

Under the General Equivalence Mappings, sjogren syndrome, unspecified converts to ICD-9-CM 710.2 (sicca syndrome). 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.