ICD-10 Code A15.8 – Other respiratory tuberculosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A15.8 – Other respiratory tuberculosis
What it is
A15.8 identifies tuberculosis infection involving respiratory sites other than the main categories named elsewhere. Use it when documentation specifies an atypical or other respiratory location and confirms tuberculosis.
Clinical signs
Clinical features vary; refer to documentation. You may see cough, chest symptoms, or imaging findings consistent with respiratory tuberculosis, but the record should support a respiratory site and tuberculosis diagnosis.
When to use this code
Use A15.8 when the provider documents tuberculosis in a respiratory structure that is not captured by a more specific respiratory TB code. It is appropriate when the note clearly identifies the site as respiratory and does not name a better option. If the site is unclear, check documentation before coding.
Do not use for
Do not use this code for nonrespiratory tuberculosis or when another respiratory TB code describes the documented site more precisely. If the record only says “TB” without location, check documentation.
Coding tip
Match the named respiratory site in the chart to the most specific TB code first, and use A15.8 only when no more specific respiratory option fits.