ICD-10 Code A01.03 – Typhoid pneumonia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A01.03 – Typhoid pneumonia
What it is
Typhoid pneumonia is a lung infection occurring as a complication of typhoid fever caused by Salmonella Typhi. Use this code when the record specifically documents pneumonia linked to typhoid infection.
Clinical signs
Clinical features vary; refer to documentation. Records may note cough, respiratory distress, or radiographic pneumonia in the setting of confirmed typhoid fever.
When to use this code
Use A01.03 when the provider states typhoid pneumonia, typhoid fever with pneumonia, or pneumonia due to Salmonella Typhi. Code it only when the documentation connects the lung infection to typhoid illness. If the pneumonia cause is unclear, check documentation.
Do not use for
Do not use this code for ordinary bacterial pneumonia, typhoid fever without pulmonary involvement, or unspecified pneumonia. If the chart does not link pneumonia to typhoid, choose a different diagnosis.
Coding tip
Verify the causal relationship in the note; the diagnosis must be documented as typhoid-related, not just concurrent with fever or respiratory symptoms.