2026 ICD-10-CM Diagnosis Code A15.5Tuberculosis of larynx, trachea and bronchus
ICD-10-CM Codes›A00–B99›A15-A19›A15
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
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. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 127 closely related codes. 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
Code Classification
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
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous) J40
caseous (tuberculous) A15.5
tuberculous A15.5
Laryngitis (acute) (edematous) (fibrinous) (infective) (infiltrative) (malignant) (membranous) (phlegmonous) (pneumococcal) (pseudomembranous) (septic) (subglottic) (suppurative) (ulcerative) J04.0
tuberculous A15.5
Stenosis, stenotic (cicatricial) See Also: Stricture;
tuberculous NEC A15.5
Stricture See Also: Stenosis;
tuberculous NEC A15.5
Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) A15.9
bronchi, bronchial, bronchus A15.5
fistula A15.5
bronchitis A15.5
bronchorrhagia A15.5
bronchotracheal A15.5
epiglottis A15.5
glottis A15.5
laryngitis A15.5
larynx A15.5
peribronchitis A15.5
perichondritis, larynx A15.5
trachea, tracheal A15.5
tracheobronchial A15.5
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
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.
Code HistoryHistory
Questions About A15.5Overview
What is the ICD-10 code for tuberculosis of larynx, trachea and bronchus?
The ICD-10-CM code for tuberculosis of larynx, trachea and bronchus is A15.5 (sometimes written as A155). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
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.
Is A15.5 a CC or MCC?
CMS lists A15.5 as a CC (complication or comorbidity) for FY 2026. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 127 closely related codes in its exclusion list.
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.
