2026 ICD-10-CM Diagnosis Code M32.0Drug-induced systemic lupus erythematosus
ICD-10-CM Codes›M00–M99›M30-M36›SLE
- Billable — Valid for Submission
- Not Chronic
M32.0 is a billable ICD-10-CM diagnosis code for drug-induced systemic lupus erythematosus. 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 drug-induced lupus erythematosus. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Drug induced or toxic related condition and Systemic lupus erythematosus and connective tissue disorders.
M32.0 no longer risk-adjusts for Medicare Advantage: it mapped to HCC 40 under the retired CMS-HCC V24 model through payment year 2025 but maps to no category in the live V28 model. It still risk-adjusts in the PACE (CMS-HCC V22) category 40, ESRD (V21) category 40, ESRD (V24) category 40, and RxHCC Part D (V08) category 84 for payment year 2026.
Code Identity
Code Classification
Medicare Risk Adjustment (HCC)Billing
M32.0 no longer risk-adjusts for Medicare Advantage: it maps to no payment category in the live CMS-HCC V28 model, although it still risk-adjusts in the other CMS models shown below.
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.
- Drug-induced lupus erythematosus
- Drug-induced lupus erythematosus caused by diphenylhydantoin
- Drug-induced lupus erythematosus caused by hydralazine
- Drug-induced lupus erythematosus caused by procainamide
- Drug-induced systemic lupus erythematosus
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Drug Reactions
Most of the time, medicines make our lives better. They reduce aches and pains, fight infections, and control problems such as high blood pressure or diabetes. But medicines can also cause unwanted reactions, such as drug interactions, side effects, and allergies.
The full article covers:
- What is a drug interaction?
- What are side effects?
- What are drug allergies?
- How can I stay safe when taking medicines?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert M32.0 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About M32.0Overview
What is the ICD-10 code for drug-induced systemic lupus erythematosus?
The ICD-10-CM code for drug-induced systemic lupus erythematosus is M32.0 (sometimes written as M320). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is M32.0 (Systemic lupus erythematosus (SLE)) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report drug-induced systemic lupus erythematosus on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does M32.0 group to?
When drug-induced systemic lupus erythematosus 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 M32.0?
Under the General Equivalence Mappings, drug-induced systemic lupus erythematosus converts to ICD-9-CM 710.0 (syst lupus erythematosus). The mapping is approximate, so confirm the match fits the documentation.
Does M32.0 risk-adjust for Medicare Advantage payment?
Not for Medicare Advantage. M32.0 mapped to HCC 40 in the retired CMS-HCC V24 model, which last determined payment in 2025, but it maps to no category in the live V28 model; see all codes that no longer risk-adjust. It still risk-adjusts in the PACE (CMS-HCC V22) category 40 (Rheumatoid Arthritis and Inflammatory Connective Tissue Disease), ESRD (V21) category 40 (Rheumatoid Arthritis and Inflammatory Connective Tissue Disease), ESRD (V24) category 40 (Rheumatoid Arthritis and Inflammatory Connective Tissue Disease), and RxHCC Part D (V08) category 84 (Systemic Lupus Erythematosus and Other Systemic Connective Tissue Disorders).
