2026 ICD-10-CM Diagnosis Code A15.8Other respiratory tuberculosis
ICD-10-CM Codes›A00–B99›A15-A19›A15
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
A15.8 is a billable ICD-10-CM diagnosis code for other respiratory tuberculosis. 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 21 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified lower respiratory disease and Tuberculosis.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Antibiotic resistant tuberculosis
- Bacterial sinusitis
- Caseating tuberculoid granuloma
- Drug resistant tuberculosis
- Ethionamide resistant tuberculosis
- Isoniazid resistant tuberculosis
- Pyrazinamide resistant tuberculosis
- Tuberculosis of mediastinum
- Tuberculosis of nasal septum
- Tuberculosis of nasal sinus
- Tuberculosis of nasopharynx
- Tuberculosis of nose
- Tuberculosis of oropharynx
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Mediastinal tuberculosis
- Nasopharyngeal tuberculosis
- Tuberculosis of nose
- Tuberculosis of sinus [any nasal]
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.
Rhinitis (atrophic) (catarrhal) (chronic) (croupous) (fibrinous) (granulomatous) (hyperplastic) (hypertrophic) (membranous) (obstructive) (purulent) (suppurative) (ulcerative) J31.0
tuberculous A15.8
Sinusitis (accessory) (chronic) (hyperplastic) (nasal) (nonpurulent) (purulent) J32.9
tuberculous, any sinus A15.8
Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) A15.9
frontal sinus A15.8
retropharyngeal A15.8
adenoids A15.8
fauces A15.8
hypopharynx A15.8
mediastinitis A15.8
mediastinum A15.8
nasal (passage) (sinus) A15.8
nasopharynx A15.8
nose (septum) A15.8
pharynx, pharyngitis A15.8
specified site NEC A15.8
rhinitis A15.8
sinus (any nasal) A15.8
throat A15.8
tonsil, tonsillitis A15.8
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Tuberculosis
Tuberculosis (TB) is a bacterial disease that usually attacks the lungs. But it can also attack other parts of the body, including the kidneys, spine, and brain.
The full article covers:
- What is tuberculosis (TB)?
- What causes tuberculosis (TB)?
- Who is more likely to get infected with tuberculosis (TB) germs?
- Who is more likely to develop TB disease?
- What are the symptoms of tuberculosis (TB)?
- How is tuberculosis (TB) diagnosed?
- What is the treatment for tuberculosis (TB)?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert A15.8 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About A15.8Overview
What is the ICD-10 code for other respiratory tuberculosis?
The ICD-10-CM code for other respiratory tuberculosis is A15.8 (sometimes written as A158). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is A15.8 (Respiratory tuberculosis) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other respiratory tuberculosis on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does A15.8 group to?
When other respiratory tuberculosis 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 A15.8 a CC or MCC?
CMS lists A15.8 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 21 closely related codes in its exclusion list.
What is the ICD-9 equivalent of A15.8?
Under the General Equivalence Mappings, other respiratory tuberculosis converts to ICD-9-CM 012.80 (resp TB NEC-unspec). The mapping is approximate, so confirm the match fits the documentation.
