A17 – Tuberculosis of nervous system
ICD-10-CM 2027 diagnosis code · Tuberculosis
ICD-10-CM code
A17
- Code
A17(claims format:A17)- Description
- Tuberculosis of nervous system
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 1. Certain infectious and parasitic diseases (A00-B99)
- Block
- A15-A19 Tuberculosis
Billable codes under A17
A17 is a header code and cannot be used on claims. Choose the most specific code:
- A17.0 – Tuberculous meningitisBillable
- A17.1 – Meningeal tuberculomaBillable
- A17.8 – Other tuberculosis of nervous systemHeader (more codes below)
- A17.9 – Tuberculosis of nervous system, unspecifiedBillable
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block A15-A19
Includes:
- infections due to Mycobacterium tuberculosis and Mycobacterium bovis
Excludes1 (not coded here):
- congenital tuberculosis (P37.0)
- nonspecific reaction to test for tuberculosis without active tuberculosis (R76.1-)
- pneumoconiosis associated with tuberculosis, any type in A15 (J65)
- positive PPD (R76.11)
- positive tuberculin skin test without active tuberculosis (R76.11)
- sequelae of tuberculosis (B90.-)
- silicotuberculosis (J65)
Use additional code:
- code, if applicable, for associated cachexia (E88.A)
Frequently asked questions
What is ICD-10 code A17?
A17 is the ICD-10-CM code for tuberculosis of nervous system, in the block A15-A19 (Tuberculosis).
Is A17 a billable code?
No. A17 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.