| S12.34XA | Type III traumatic spondylolisthesis of fourth cervical vertebra, initial encounter for closed fracture | BILLABLE CODE |
| S12.34XB | Type III traumatic spondylolisthesis of fourth cervical vertebra, initial encounter for open fracture | BILLABLE CODE |
| S12.34XD | Type III traumatic spondylolisthesis of fourth cervical vertebra, subsequent encounter for fracture with routine healing | BILLABLE CODE |
| S12.34XG | Type III traumatic spondylolisthesis of fourth cervical vertebra, subsequent encounter for fracture with delayed healing | BILLABLE CODE |
| S12.34XK | Type III traumatic spondylolisthesis of fourth cervical vertebra, subsequent encounter for fracture with nonunion | BILLABLE CODE |
| S12.34XS | Type III traumatic spondylolisthesis of fourth cervical vertebra, sequela | BILLABLE CODE |
