2026 ICD-10-CM Diagnosis Code M35.02Sjogren syndrome with lung involvement

ICD-10-CM Codes›M00–M99›M30-M36›M35

ICD-10-CM M35.02
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

M35.02 is a billable ICD-10-CM diagnosis code for sjogren syndrome with lung involvement. 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 lung disease with Sjögren's disease. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Systemic lupus erythematosus and connective tissue disorders.

Code Identity

ICD-10-CM Code
M35.02
Billable Status
Yes — Valid for Submission
Code Describes
Sjogren syndrome with lung involvement
Short Description
Sjogren syndrome with lung involvement
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 CodeM35.02Sjogren syndrome with lung involvement

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Lung disease with Sjögren's disease
  • Pseudolymphoma of lung in Sjögren's disease
  • Pulmonary nodular lymphoid hyperplasia
  • 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.

    • Disease, diseased
      • lung
        • in
          • Sjögren's syndrome
    • Syndrome
      • Sjögren
        • with
          • lung involvement

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

Lung Diseases

When you breathe, your lungs take in oxygen from the air and deliver it to the bloodstream. The cells in your body need oxygen to work and grow. During a normal day, you breathe nearly 25,000 times. People with lung disease have difficulty breathing. Millions of people in the U.S. have lung disease.

Read the full article at MedlinePlus

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

Convert M35.02 to ICD-9-CMHistory

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

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

Questions About M35.02Overview

Is M35.02 (Sjogren syndrome) a billable code?

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

What MS-DRG does M35.02 group to?

When sjogren syndrome with lung involvement 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 M35.02?

Under the General Equivalence Mappings, sjogren syndrome with lung involvement converts to ICD-9-CM 710.2 (sicca syndrome) and 517.8 (lung involv in oth dis). 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.