ICD-10 Code J82.81 – Chronic eosinophilic pneumonia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J82.81 – Chronic eosinophilic pneumonia
What it is
J82.81 identifies chronic eosinophilic pneumonia, an inflammatory lung disease marked by eosinophil buildup in the lungs. Use it when the documentation clearly names this diagnosis.
Clinical signs
Typical findings include cough, shortness of breath, fever, and pulmonary infiltrates on imaging. Clinical features vary; refer to documentation for the provider’s confirmed diagnosis.
When to use this code
Use J82.81 when the clinician documents chronic eosinophilic pneumonia as the confirmed condition, whether newly diagnosed or established during follow-up. It also applies when the record supports this specific eosinophilic lung disease rather than a broader pneumonia diagnosis.
Do not use for
Do not use this code for unspecified pneumonia, acute eosinophilic pneumonia, or eosinophilia without lung involvement. Check documentation if the note does not clearly identify chronic eosinophilic pneumonia.
Coding tip
Code only when the diagnosis is explicitly stated; otherwise, query the provider for clarification.