Tuberculosis of nervous system, unspecified

This code signifies a diagnosis of tuberculosis affecting any part of the nervous system, such as the brain, spinal cord, or meninges, when the specific site or type of nervous system involvement is not documented. It indicates a systemic infection with Mycobacterium tuberculosis that has manifested neurologically.

Use this code when the medical record clearly states "tuberculosis of the nervous system" but lacks further specificity regarding the exact anatomical location (e.g., tuberculous meningitis, tuberculoma of the brain). This code is appropriate when the provider has not specified the type of nervous system tuberculosis.

• Always seek further specificity from the provider if possible to identify the exact site of nervous system involvement (e.g., A17.0 for tuberculous meningitis).
• Do not use this code if the documentation specifies a particular nervous system structure affected by tuberculosis; instead, use the more specific code.
• Code also the underlying active tuberculosis if not already captured by a more specific nervous system tuberculosis code.