ICD-10-CM > S00-T88 > S20-S29 > S23 > S23.1 > S23.16 S23.16 Subluxation and dislocation of T10/T11-T11/T12 thoracic vertebra Non-Billable/Non-Specific Codes S23.160Subluxation of T10/T11 thoracic vertebraS23.160A..., initial encounterS23.160D..., subsequent encounterS23.160S..., sequelaS23.161Dislocation of T10/T11 thoracic vertebraS23.161A..., initial encounterS23.161D..., subsequent encounterS23.161S..., sequelaS23.162Subluxation of T11/T12 thoracic vertebraS23.162A..., initial encounterS23.162D..., subsequent encounterS23.162S..., sequelaS23.163Dislocation of T11/T12 thoracic vertebraS23.163A..., initial encounterS23.163D..., subsequent encounterS23.163S..., sequela