ICD-10 Code A15.7 – Primary respiratory tuberculosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A15.7 – Primary respiratory tuberculosis
What it is
A15.7 identifies primary tuberculosis involving the respiratory system. Use it for the initial active infection in the lungs or airways when documentation specifically states primary respiratory tuberculosis.
Clinical signs
Clinical features vary; refer to documentation. Typical respiratory tuberculosis may present with cough, fever, night sweats, weight loss, or abnormal chest imaging, but you should code only what the record supports.
When to use this code
Use A15.7 when the provider documents primary respiratory tuberculosis as the confirmed diagnosis. It may appear in inpatient, outpatient, or problem-list documentation when the infection is active and involves the respiratory tract. Check documentation for site and disease stage.
Do not use for
Do not use this code for latent tuberculosis, exposure without disease, or nonrespiratory TB sites. If the record does not clearly state primary respiratory tuberculosis, check documentation before assigning A15.7.
Coding tip
Code only when the diagnosis is explicitly documented; if the record is vague, query for whether the tuberculosis is primary and respiratory.