ICD-10 Code J82 – Pulmonary eosinophilia, not elsewhere classified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J82 – Pulmonary eosinophilia, not elsewhere classified
What it is
J82 identifies pulmonary eosinophilia, a condition where eosinophils accumulate in the lungs. Use it when the record describes lung involvement with eosinophilic inflammation and no more specific cause is documented.
Clinical signs
Clinical features vary; refer to documentation. Common references describe cough, shortness of breath, and infiltrates on chest imaging, sometimes with peripheral eosinophilia or evidence of eosinophilic lung disease.
When to use this code
Use J82 when the provider documents pulmonary eosinophilia or eosinophilic pneumonia without naming another underlying condition. It may also fit when the chart clearly states eosinophilic lung involvement and the cause remains unspecified. Check documentation if asthma, infection, drug reaction, or parasite-related disease is identified.
Do not use for
Do not use this code for eosinophilia limited to blood findings without lung involvement. Avoid it when the record documents a more specific diagnosis or an alternate cause of pulmonary eosinophilic disease.
Coding tip
Query the provider if the note mentions eosinophilic lung disease but does not clearly state pulmonary eosinophilia.