ICD-10-CM > S00-T88 > S30-S39 > S33 > S33.1 > S33.13 S33.13 Subluxation and dislocation of L3/L4 lumbar vertebra Non-Billable/Non-Specific Codes S33.130Subluxation of L3/L4 lumbar vertebraS33.130A..., initial encounterS33.130D..., subsequent encounterS33.130S..., sequelaS33.131Dislocation of L3/L4 lumbar vertebraS33.131A..., initial encounterS33.131D..., subsequent encounterS33.131S..., sequela