2026 ICD-10-CM Diagnosis Code A17Tuberculosis of nervous system

ICD-10-CM Codes›A00–B99›A15-A19›A17

ICD-10-CM A17
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

A17 is a non-billable ICD-10-CM category code for tuberculosis of nervous system, so it cannot be submitted on claims. Use a more specific code from this category instead, such as A17.0, A17.1, A17.81, and A17.82.

Code Identity

ICD-10-CM Code
A17
Billable Status
No — Non-Billable Category
Code Describes
Tuberculosis of nervous system
Chapter
A15-A19
Tuberculosis

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionA15-A19Tuberculosis
CategoryA17Tuberculosis of nervous system
This CodeA17Tuberculosis of nervous system

Specific Coding for Tuberculosis of nervous systemOverview

Non-specific codes like A17 require more characters. Use one of these billable codes instead:

  • Use A17.0 for Tuberculous meningitis

  • Use A17.1 for Meningeal tuberculoma

  • A17.8 for Other tuberculosis of nervous system

  • Use A17.81 for Tuberculoma of brain and spinal cord

  • Use A17.82 for Tuberculous meningoencephalitis

  • Use A17.83 for Tuberculous neuritis

  • Use A17.89 for Other tuberculosis of nervous system

  • Use A17.9 for Tuberculosis of nervous system, unspecified

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 A17Overview

Is A17 (Tuberculosis of nervous system) a billable code?

No. This is a category header that groups the codes for tuberculosis of nervous system, and headers cannot be submitted on claims. Claims for tuberculosis of nervous system need a more specific code from this category, such as A17.0, A17.1, and A17.81.