ICD-10 Code J15.1 – Pneumonia due to Pseudomonas (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J15.1 – Pneumonia due to Pseudomonas
What it is
J15.1 identifies pneumonia caused by Pseudomonas species, most often Pseudomonas aeruginosa. Use it when the record documents this organism as the cause of the lung infection.
Clinical signs
Clinical features vary; refer to documentation. Pneumonia may present with cough, sputum production, fever, shortness of breath, and imaging findings consistent with lung infection.
When to use this code
Use J15.1 when the provider specifically documents pneumonia due to Pseudomonas or confirms the organism as the cause. You may also use it when culture or other diagnostic documentation supports that etiology and the note links it to pneumonia.
Do not use for
Do not use this code for colonization, suspected infection, or pneumonia caused by another organism. Check documentation if Pseudomonas is mentioned without a clear causal link.
Coding tip
Code the organism only when the provider documents it as the cause of pneumonia.