2026 ICD-10-CM Diagnosis Code A15.5Tuberculosis of larynx, trachea and bronchus

ICD-10-CM Codes›A00–B99›A15-A19›A15

ICD-10-CM A15.5
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

A15.5 is a billable ICD-10-CM diagnosis code for tuberculosis of larynx, trachea and bronchus. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 177 through 179, 974 through 976. Coders also document this condition as bronchopleural fistula. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified upper respiratory infections and Tuberculosis.

Code Identity

ICD-10-CM Code
A15.5
Billable Status
Yes — Valid for Submission
Code Describes
Tuberculosis of larynx, trachea and bronchus
Short Description
Tuberculosis of larynx, trachea and bronchus
Same as the full description in the CMS dataset.
Parent Code
A15
Respiratory tuberculosis

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionA15-A19Tuberculosis
CategoryA15Respiratory tuberculosis
This CodeA15.5Tuberculosis of larynx, trachea and bronchus

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bronchopleural fistula
  • Isolated bronchial tuberculosis
  • Isolated tracheal tuberculosis
  • Isolated tracheobronchial tuberculosis
  • Tuberculosis of bronchus
  • Tuberculosis of glottis
  • Tuberculosis of larynx, trachea and bronchus, confirmed bacteriologically and histologically
  • Tuberculosis of lung with involvement of bronchus
  • Tuberculous bronchopleural fistula
  • Tuberculous laryngitis

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

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

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Bronchitis(diffuse) (fibrinous) (hypostatic) (infective) (membranous)
      • caseous (tuberculous)
    • Bronchitis(diffuse) (fibrinous) (hypostatic) (infective) (membranous)
      • tuberculous
    • Broncholithiasis
      • tuberculous NEC
    • Fistula(cutaneous)
      • bronchocutaneous, bronchomediastinal, bronchopleural, bronchopleuromediastinal (infective)
        • tuberculous NEC
    • Laryngitis(acute) (edematous) (fibrinous) (infective) (infiltrative) (malignant) (membranous) (phlegmonous) (pneumococcal) (pseudomembranous) (septic) (subglottic) (suppurative) (ulcerative)
      • tuberculous
    • Laryngotracheitis(acute) (Infectional) (infective) (viral)
      • tuberculous
    • Stenosis, stenotic(cicatricial)
      • trachea
        • tuberculous NEC
    • Stricture
      • trachea
        • tuberculous NEC
    • Tracheitis(catarrhal) (infantile) (membranous) (plastic) (septal) (suppurative) (viral)
      • with
        • bronchitis (15 years of age and above)
          • tuberculous NEC
    • Tracheitis(catarrhal) (infantile) (membranous) (plastic) (septal) (suppurative) (viral)
      • with
        • laryngitis (acute)
          • tuberculous NEC
    • Tracheitis(catarrhal) (infantile) (membranous) (plastic) (septal) (suppurative) (viral)
      • tuberculous
    • Tuberculosis, tubercular, tuberculous(calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative)
      • bronchi, bronchial, bronchus
    • Tuberculosis, tubercular, tuberculous(calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative)
      • bronchi, bronchial, bronchus
        • fistula
    • Tuberculosis, tubercular, tuberculous(calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative)
      • bronchitis
    • Tuberculosis, tubercular, tuberculous(calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative)
      • bronchorrhagia
    • Tuberculosis, tubercular, tuberculous(calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative)
      • bronchotracheal
    • Tuberculosis, tubercular, tuberculous(calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative)
      • epiglottis
    • Tuberculosis, tubercular, tuberculous(calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative)
      • glottis
    • Tuberculosis, tubercular, tuberculous(calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative)
      • laryngitis
    • Tuberculosis, tubercular, tuberculous(calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative)
      • larynx
    • Tuberculosis, tubercular, tuberculous(calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative)
      • peribronchitis
    • Tuberculosis, tubercular, tuberculous(calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative)
      • perichondritis, larynx
    • Tuberculosis, tubercular, tuberculous(calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative)
      • trachea, tracheal
    • Tuberculosis, tubercular, tuberculous(calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative)
      • tracheobronchial

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR RSP006
Other specified upper respiratory infections
Default principal diagnosis: inpatient No · outpatient No
CCSR INF001
Tuberculosis
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Tuberculous Laryngitis

    extrapulmonary tuberculosis involving the larynx. signs and symptoms include hoarseness, cough, and odynophagia. the condition is rare.

Patient EducationClinical

Throat Disorders

Your throat is a tube that carries food to your esophagus and air to your windpipe and larynx. The technical name for your throat is the pharynx.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert A15.5 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
011.30 TB of bronchus-unspec
Approximate The match is approximate rather than exact.
ICD-9-CM
012.20 Isol tracheal tb-unspec
Approximate The match is approximate rather than exact.
ICD-9-CM
012.30 TB laryngitis-unspec
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About A15.5Overview

Is A15.5 (Respiratory tuberculosis) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report tuberculosis of larynx, trachea and bronchus on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does A15.5 group to?

When tuberculosis of larynx, trachea and bronchus is the principal diagnosis on an inpatient stay, it groups to MS-DRG 177, 178, 179, 974, 975, 976, with relative weights from 0.7550 to 2.8860 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of A15.5?

Under the General Equivalence Mappings, tuberculosis of larynx, trachea and bronchus converts to ICD-9-CM 011.30 (TB of bronchus-unspec), 012.20 (isol tracheal tb-unspec), and 012.30 (TB laryngitis-unspec). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.