ICD-10 Code B90.0 – Sequelae of Central Nervous System Tuberculosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B90.0 – Sequelae of central nervous system tuberculosis
What it is
B90.0 identifies late effects that remain after central nervous system tuberculosis has been treated or is no longer active. Use it for residual neurologic problems linked to prior CNS TB, not for active infection.
Clinical signs
Clinical features vary; refer to documentation. Residual findings may include persistent neurologic deficits, cognitive changes, or complications documented as a consequence of prior tuberculosis involving the brain or spinal cord.
When to use this code
Use this code when the record clearly states sequelae, residuals, or late effects from previous central nervous system tuberculosis. It is appropriate when the active infection has resolved and the visit addresses ongoing consequences of that past disease.
Choose this code only if the provider links the current condition to prior CNS TB. If the note describes active tuberculosis, use the appropriate active TB code instead. Check documentation when the relationship is unclear.
Do not use for
Do not use B90.0 for active tuberculosis of the meninges, brain, or spinal cord. It is also incorrect when the neurologic problem is unrelated to prior TB or the record does not document a sequela.
Coding tip
Look for wording such as “late effect,” “sequela,” or “residual from prior CNS TB” before assigning B90.0.