FY2027 ICD-10-CM reference
A17: Tuberculosis of nervous system
By the HCC Buddy Coding Team
The official ICD-10-CM descriptor is Tuberculosis of nervous system. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Nonbillable heading. Verified against the official FY2027 order file.
More specific FY2027 codes
- A17.0: Tuberculous meningitisBillable code
- A17.1: Meningeal tuberculomaBillable code
- A17.8: Other tuberculosis of nervous systemNonbillable heading
- A17.9: Tuberculosis of nervous system, unspecifiedBillable code
FY2027 Tabular instructions
Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.
Includes
diseases generally recognized as communicable or transmissible
Source: A00-B99 (chapter, inherited).
Instructional note
code to identify resistance to antimicrobial drugs (Z16.-)
Source: A00-B99 (chapter, inherited).
Excludes2
carrier or suspected carrier of infectious disease (Z22.-)
Source: A00-B99 (chapter, inherited).
Excludes2
certain localized infections - see body system-related chapters
Source: A00-B99 (chapter, inherited).
Excludes2
infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
Source: A00-B99 (chapter, inherited).
Excludes2
infectious and parasitic diseases specific to the perinatal period (P35-P39)
Source: A00-B99 (chapter, inherited).
Excludes2
influenza and other acute respiratory infections (J00-J22)
Source: A00-B99 (chapter, inherited).
Includes
infections due to Mycobacterium tuberculosis and Mycobacterium bovis
Source: A15-A19 (section, inherited).
Instructional note
code, if applicable, for associated cachexia (E88.A)
Source: A15-A19 (section, inherited).
Excludes1
congenital tuberculosis (P37.0)
Source: A15-A19 (section, inherited).
Excludes1
nonspecific reaction to test for tuberculosis without active tuberculosis (R76.1-)
Source: A15-A19 (section, inherited).
Excludes1
pneumoconiosis associated with tuberculosis, any type in A15 (J65)
Source: A15-A19 (section, inherited).
Excludes1
positive PPD (R76.11)
Source: A15-A19 (section, inherited).
Excludes1
positive tuberculin skin test without active tuberculosis (R76.11)
Source: A15-A19 (section, inherited).
Excludes1
sequelae of tuberculosis (B90.-)
Source: A15-A19 (section, inherited).
Excludes1
silicotuberculosis (J65)
Source: A15-A19 (section, inherited).
Compare the FY2027 additions, removals and billable-status changes
What does A17 mean in FY2027?
The official ICD-10-CM descriptor is Tuberculosis of nervous system. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Is A17 billable in FY2027?
The FY2027 order file marks A17 as a nonbillable heading. Select a complete billable child code.
Does A17 map to an HCC?
Risk-model mapping is not applicable to this nonbillable heading. Check a complete billable child code.
Source: CMS FY2027 ICD-10-CM order file. Payment model: CMS CY 2027 Rate Announcement. Read the FY2027 Official Guidelines.
Review the FY2026 April edition