A15.5 Tuberculosis of larynx, trachea and bronchus

The ICD-10-CM code for Tuberculosis of larynx, trachea and bronchus is A15.5 (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 A15.5:

• Tracheitis (catarrhal) (infantile) (membranous) (plastic) (septal) (suppurative) (viral) › tuberculous
• Laryngitis (acute) (edematous) (fibrinous) (infective) (infiltrative) (malignant) (membranous) (phlegmonous) (pneumococcal) (pseudomembranous) (septic) (subglottic) (suppurative) (ulcerative) › tuberculous
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › bronchitis
• Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous) › caseous (tuberculous)
• Broncholithiasis › tuberculous NEC
• Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous) › tuberculous
• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › bronchi, bronchial, bronchus
• Laryngotracheitis (acute) (Infectional) (infective) (viral) › tuberculous

Inclusion Terms

• Tuberculosis of bronchus
• Tuberculosis of glottis
• Tuberculosis of larynx
• Tuberculosis of trachea

U.S. Hospital Utilization

A15.5 appeared in too few sampled U.S. inpatient stays in 2023 to report a national estimate (AHRQ suppresses counts of 10 or fewer) — a rare inpatient 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)