ICD-10-CM > S00-T88 > S10-S19 > S13 > S13.1 > S13.14 S13.14 Subluxation and dislocation of C3/C4 cervical vertebrae Non-Billable/Non-Specific Codes S13.140Subluxation of C3/C4 cervical vertebraeS13.140A..., initial encounterS13.140D..., subsequent encounterS13.140S..., sequelaS13.141Dislocation of C3/C4 cervical vertebraeS13.141A..., initial encounterS13.141D..., subsequent encounterS13.141S..., sequela