M32.13 Lung involvement in systemic lupus erythematosus

Billable ICD-10-CM code, FY2026.

Applicable to

• Pleural effusion due to systemic lupus erythematosus

Applies from M32 Systemic lupus erythematosus (SLE)

Excludes1 (never code together)

• lupus erythematosus (discoid) (NOS) (L93.0)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 280 — Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders
• CMS-HCC V22: HCC 112 — Fibrosis of Lung and Other Chronic Lung Disorders
• RxHCC V08: HCC 227 — Pulmonary Fibrosis, Except Idiopathic
• ESRD V24: HCC 112

MS-DRG index

Defines the logic of DRG(s) 545-547 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 517.8 Lung involvement in other diseases classified elsewhere (approximate)
• 710.0 Systemic lupus erythematosus (approximate)

Code annotations containing back-references to M32.13

Back-references to M32.13

• Type 2 Excludes: J91 Pleural effusion in conditions classified elsewhere ("pleural effusion in systemic lupus erythematosus (M32.13)")
• Type 1 Excludes: J99 Respiratory disorders in diseases classified elsewhere ("systemic lupus erythematosus (M32.13)")

Back-references to M32.1

• Code First: J84.178 Other interstitial pulmonary diseases with fibrosis in diseases classified elsewhere ("systemic lupus erythematosis (M32.0-M32.9)")

Back-references to M32

• Type 2 Excludes: A18.4 Tuberculosis of skin and subcutaneous tissue ("systemic lupus erythematosus (M32.-)")
• Code Also: D59.39 Other hemolytic-uremic syndrome ("systemic lupus erythematosus (M32.-)")
• Code First: F02 Dementia in other diseases classified elsewhere ("systemic lupus erythematosus (M32.-)")
• Code First: F06.7 Mild neurocognitive disorder due to known physiological condition ("systemic lupus erythematosus (M32.-)")
• Type 2 Excludes: I77 Other disorders of arteries and arterioles ("collagen (vascular) diseases (M30-M36)")
• Type 2 Excludes: J82 Pulmonary eosinophilia, not elsewhere classified ("pulmonary eosinophilia due to systemic connective tissue disorders (M30-M36)")
• Code First: J84.170 Interstitial lung disease with progressive fibrotic phenotype in diseases classified elsewhere ("systemic connective tissue disorders (M30-M36)")
• Type 1 Excludes: L93 Lupus erythematosus ("systemic lupus erythematosus (M32.-)")
• Type 1 Excludes: L94 Other localized connective tissue disorders ("systemic connective tissue disorders (M30-M36)")

Diagnosis Index entries for M32.13

• Disease, diseased › lung › in › systemic › lupus erythematosus
• Effusion › pleura, pleurisy, pleuritic, pleuropericardial › due to systemic lupus erythematosis
• Lupus › erythematosus (discoid) (local) › systemic › with organ or system involvement › lung

Nearby codes

• M32.0 Drug-induced systemic lupus erythematosus
• M32.1 Systemic lupus erythematosus with organ or system involvement
• M32.10 Systemic lupus erythematosus, organ or system involvement unspecified
• M32.11 Endocarditis in systemic lupus erythematosus
• M32.12 Pericarditis in systemic lupus erythematosus
• M32.13 Lung involvement in systemic lupus erythematosus (this code)
• M32.14 Glomerular disease in systemic lupus erythematosus
• M32.15 Tubulo-interstitial nephropathy in systemic lupus erythematosus
• M32.19 Other organ or system involvement in systemic lupus erythematosus
• M32.8 Other forms of systemic lupus erythematosus
• M32.9 Systemic lupus erythematosus, unspecified