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A15.0 — Tuberculosis of lung
A15.0
What this code means
Tuberculosis infection of the lungs, caused by Mycobacterium tuberculosis, spread through the air from people with active disease.
Also called: pulmonary tuberculosis, lung tb.
When this code is used
Used for tuberculosis of the lung confirmed or recorded without further specification of the site.
Where it sits in ICD-10-CM
Code A15.0 belongs to Chapter 1: Infectious and parasitic diseases, which covers codes A00–B99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.
Learn more about this condition
Related symptoms
Frequently asked questions
What is ICD-10-CM code A15.0?
A15.0 is the ICD-10-CM diagnosis code for “Tuberculosis of lung”. Tuberculosis infection of the lungs, caused by Mycobacterium tuberculosis, spread through the air from people with active disease.
When is code A15.0 used?
Used for tuberculosis of the lung confirmed or recorded without further specification of the site. It belongs to Chapter 1 of ICD-10-CM (Infectious and parasitic diseases).
This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.