A15.0 Tuberculosis of lung

The ICD-10-CM code for Tuberculosis of lung is A15.0 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

1: Certain infectious and parasitic diseases (A00-B99)

Section

A15-A19: Tuberculosis (A15-A19)

Category A15

8 codes (7 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to A15.0:

• Assmann's focus NEC
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › Rasmussen NEC
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › pulmonary (cavitated) (fibrotic) (infiltrative) (nodular)
• Hemorrhage, hemorrhagic (concealed) › tuberculous NEC

Inclusion Terms

• Tuberculous bronchiectasis
• Tuberculous fibrosis of lung
• Tuberculous pneumonia
• Tuberculous pneumothorax

U.S. Hospital Utilization

• An estimated 4,925 U.S. inpatient stays in 2023 included A15.0 among the documented diagnoses.
• 2,135 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

HIV Infections (TOC entry)

a. Human Immunodeficiency Virus (HIV) Infections .............................................................. 19

Infectious agents causing diseases in other chapters (TOC)

b. Infectious agents as the cause of diseases classified to other chapters ................................. 22

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)