ICD-10 Code B58.3 – Pulmonary Toxoplasmosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B58.3 – Pulmonary toxoplasmosis
What it is
B58.3 identifies toxoplasma infection involving the lungs. Use it when documentation states pulmonary toxoplasmosis or toxoplasmosis affecting pulmonary tissue.
Clinical signs
Clinical features vary; refer to documentation. Reported findings may include cough, shortness of breath, fever, and abnormal chest imaging in the setting of toxoplasma infection.
When to use this code
Use this code when the provider documents pulmonary toxoplasmosis as the diagnosed site of infection. It may also apply when the record clearly links toxoplasma disease to lung involvement. If the site is not specified, check documentation before coding.
Do not use for
Do not use B58.3 for toxoplasmosis limited to another organ system or for nonspecific suspected infection. If the chart only says exposure, history, or rule-out toxoplasmosis, this code is not appropriate.
Coding tip
Code the documented anatomic site exactly; if pulmonary involvement is not explicit, query or check documentation.