ICD-10-CM > S00-T88 > S10-S19 > S14 > S14.1 > S14.14 > S14.143 S14.143 Brown-Séquard syndrome at C3 level of cervical spinal cord Non-Billable/Non-Specific Codes S14.143A..., initial encounterS14.143D..., subsequent encounterS14.143S..., sequela