ICD-10-CM > S00-T88 > S20-S29 > S23 > S23.0 S23.0 Traumatic rupture of thoracic intervertebral disc Non-Billable/Non-Specific Type 1 Excludes rupture or displacement (nontraumatic) of thoracic intervertebral disc NOS (M51.- with fifth character 4) Codes S23.0XXA..., initial encounterS23.0XXD..., subsequent encounterS23.0XXS..., sequela