ICD-10 Code A15.9 – Respiratory tuberculosis unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A15.9 – Respiratory tuberculosis unspecified
What it is
A15.9 identifies respiratory tuberculosis when the record confirms tuberculosis of the lungs or airways but does not specify the exact respiratory site. Use it for documented respiratory TB without further detail.
Clinical signs
Clinical features vary; refer to documentation. Standard findings may include cough, fever, weight loss, night sweats, or imaging and microbiologic evidence supporting respiratory tuberculosis.
When to use this code
Use A15.9 when the provider documents respiratory tuberculosis and does not name a more specific site, such as bronchus, lung, or pleura. It also fits confirmed pulmonary TB when the chart lacks further anatomic detail. Check documentation if another TB site is identified.
Do not use for
Do not use this code for extrapulmonary tuberculosis or for a more specific respiratory TB code when the site is documented. If the record says suspected TB only, check documentation and coding guidance.
Coding tip
Assign A15.9 only when respiratory TB is confirmed but unspecified; capture a more specific code whenever the provider documents the exact respiratory location.