ICD-10 Code J85.0 – Gangrene and necrosis of lung (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J85.0 – Gangrene and necrosis of lung
What it is
J85.0 identifies gangrene or necrosis involving lung tissue. Use it for documented death of lung tissue, often from severe infection or compromised blood supply.
Clinical signs
Findings may include severe pulmonary infection, foul-smelling sputum, cavitary lung changes, or tissue destruction on imaging. Clinical features vary; refer to documentation.
When to use this code
Use J85.0 when the provider specifically documents gangrene or necrosis of the lung. It may apply when imaging, bronchoscopy, or operative notes describe necrotic lung tissue. If the record only states pneumonia, abscess, or empyema without necrosis, check documentation.
Do not use for
Do not use this code for lung abscess, pneumonia, or pleural infection unless necrosis or gangrene is clearly documented. Do not assume necrosis from severe respiratory illness alone.
Coding tip
Code J85.0 only when the provider uses explicit necrosis or gangrene language, or documents equivalent tissue death in the lung.