2026 ICD-10-CM Diagnosis Code M35.02Sjogren syndrome with lung involvement
ICD-10-CM Codes›M00–M99›M30-M36›M35
- Billable — Valid for Submission
- Risk Adjusts — HCC 280
- Chronic Condition
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.
For Medicare Advantage risk adjustment, M35.02 maps to CMS-HCC Category 280 (Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders) under the V28 model, adding a risk factor of about 0.319 for a community, non-dual, aged beneficiary in payment year 2026.
Code Identity
Code Classification
Medicare Risk Adjustment (HCC)Billing
M35.02 maps to a payment category in the CMS-HCC model used to risk-adjust Medicare Advantage payments. Weights are the published community factors for payment year 2026.
Source: CMS Payment Year 2026 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.
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.
Disease, diseased See Also: Syndrome;
Sjögren's syndrome M35.02
Syndrome See Also: Disease;
lung involvement M35.02
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
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.
Code HistoryHistory
Questions About M35.02Overview
What is the ICD-10 code for sjogren syndrome with lung involvement?
The ICD-10-CM code for sjogren syndrome with lung involvement is M35.02 (sometimes written as M3502). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
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.
What HCC is M35.02?
M35.02 (sjogren syndrome with lung involvement) maps to CMS-HCC Category 280 (Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders), commonly written as HCC 280, in the CMS-HCC V28 model used for Medicare Advantage risk adjustment in payment year 2026. It mapped to HCC 40 under the retired V24 model. It also maps in the PACE (CMS-HCC V22), ESRD (V21), and ESRD (V24) models. In the Part D prescription drug model it maps to RxHCC 227.
Does M35.02 risk-adjust for Medicare Advantage payment?
Yes. When documented and reported on a Medicare Advantage encounter, M35.02 adds a risk adjustment factor of about 0.319 to the beneficiary's RAF score for a community, non-dual, aged enrollee (published V28 weights range from 0.209 to 0.390 depending on the payment segment). A more severe related category (HCC 276, HCC 277, HCC 278, and HCC 279) supersedes it when both are reported. See the full factor table on the HCC 280 category page.
