2026 ICD-10-CM Diagnosis Code A19Miliary tuberculosis

ICD-10-CM Codes›A00–B99›A15-A19›A19

ICD-10-CM A19
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

A19 is a non-billable ICD-10-CM category code for miliary tuberculosis, so it cannot be submitted on claims. Use a more specific code from this category instead, such as A19.0, A19.1, A19.2, and A19.8.

Code Identity

ICD-10-CM Code
A19
Billable Status
No — Non-Billable Category
Code Describes
Miliary tuberculosis
Chapter
A15-A19
Tuberculosis

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionA15-A19Tuberculosis
CategoryA19Miliary tuberculosis
This CodeA19Miliary tuberculosis

Specific Coding for Miliary tuberculosisOverview

Non-specific codes like A19 require more characters. Use one of these billable codes instead:

  • Use A19.0 for Acute miliary tuberculosis of a single specified site

  • Use A19.1 for Acute miliary tuberculosis of multiple sites

  • Use A19.2 for Acute miliary tuberculosis, unspecified

  • Use A19.8 for Other miliary tuberculosis

  • Use A19.9 for Miliary tuberculosis, unspecified

Tabular List NotesGuidance

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

Includes

  • disseminated tuberculosis
  • generalized tuberculosis
  • tuberculous polyserositis

Clinical InformationClinical

  • Miliary Tuberculosis

    clinical disease resulting from hematogenous dissemination of mycobacterium tuberculosis bacilli. originally described by the appearance of millet seed-like granulomas in the lungs, its progression from sustained bacteremia to extrapulmonary involvement is suggestive of a poor prognosis.

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.

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 A19Overview

Is A19 (Miliary tuberculosis) a billable code?

No. This is a category header that groups the codes for miliary tuberculosis, and headers cannot be submitted on claims. Claims for miliary tuberculosis need a more specific code from this category, such as A19.0, A19.1, and A19.2.