ICD-10-CM > S00-T88 > S20-S29 > S23 > S23.1 > S23.15 > S23.150 S23.150 Subluxation of T8/T9 thoracic vertebra Non-Billable/Non-Specific Codes S23.150A..., initial encounterS23.150D..., subsequent encounterS23.150S..., sequela