ICD-10-CM > S00-T88 > S20-S29 > S24 > S24.1 > S24.14 > S24.141 S24.141 Brown-Séquard syndrome at T1 level of thoracic spinal cord Non-Billable/Non-Specific Codes S24.141A..., initial encounterS24.141D..., subsequent encounterS24.141S..., sequela