A17.9 Tuberculosis of nervous system, unspecified

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

MS-DRG index

Defines the logic of DRG(s) 867-869 in MDC 18.

Approximate ICD-9-CM (GEMs)

• 017.90 Tuberculosis of other specified organs, unspecified (approximate)

Code annotations containing back-references to A17.9

Back-references to A17

• Type 2 Excludes: A31 Infection due to other mycobacteria ("tuberculosis (A15-A19)")

Diagnosis Index entries for A17.9

• Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) › nervous system

Nearby codes

• A17.8 Other tuberculosis of nervous system
• A17.81 Tuberculoma of brain and spinal cord
• A17.82 Tuberculous meningoencephalitis
• A17.83 Tuberculous neuritis
• A17.89 Other tuberculosis of nervous system
• A17.9 Tuberculosis of nervous system, unspecified (this code)