ICD-10-CM 2027 diagnosis code

A17.8Other tuberculosis of nervous system

Not billable — use a more specific code

A17.8 is a header code, so it can't be reported by itself. Choose one of the 4 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About A17.8

A17.8 is the ICD-10-CM diagnosis code for other tuberculosis of nervous system. It belongs to category A17 (tuberculosis of nervous system), block A15-A19 (tuberculosis) and chapter 1 (certain infectious and parasitic diseases). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

Within A17, choose A17.8 (Other tuberculosis of nervous system) only when documentation doesn't support a more specific option: tuberculous meningitis (A17.0), meningeal tuberculoma (A17.1) and unspecified (A17.9).

To report this condition, pick the subcode that matches the documentation: A17.81 (cord), A17.82 (meningoencephalitis), A17.83 (neuritis) and A17.89 (system).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under A17.8

Notes that apply from higher levels

Instructions written at a parent level also apply to A17.8.

Broader instructions also apply from A15-A19 Tuberculosis and Chapter 1: Certain infectious and parasitic diseases.

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about A17.8

Is A17.8 billable?: No. A17.8 is a header code. Report one of its more specific subcodes instead.