ICD-10 Code A15 – Respiratory Tuberculosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A15 – Respiratory tuberculosis
What it is
A15 identifies respiratory tuberculosis, meaning tuberculosis infection involving the lungs or other parts of the respiratory system. Use this code when the record documents active respiratory TB.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include cough, fever, night sweats, weight loss, hemoptysis, or imaging consistent with pulmonary tuberculosis.
When to use this code
Use A15 when the provider documents respiratory tuberculosis as the diagnosis, such as pulmonary TB confirmed or strongly suspected in the respiratory tract. It also applies when the note clearly identifies TB in the lungs or airway. Check documentation for the exact site and type if more specificity is available.
Do not use for
Do not use this code for latent tuberculosis infection, prior history of TB, or tuberculosis outside the respiratory system. If the chart does not clearly support active respiratory involvement, check documentation.
Coding tip
Code the most specific respiratory TB diagnosis documented, and verify whether the record identifies pulmonary, bronchial, or laryngeal involvement.