| S12.130A | Unspecified traumatic displaced spondylolisthesis of second cervical vertebra, initial encounter for closed fracture | BILLABLE CODE |
| S12.130B | Unspecified traumatic displaced spondylolisthesis of second cervical vertebra, initial encounter for open fracture | BILLABLE CODE |
| S12.130D | Unspecified traumatic displaced spondylolisthesis of second cervical vertebra, subsequent encounter for fracture with routine healing | BILLABLE CODE |
| S12.130G | Unspecified traumatic displaced spondylolisthesis of second cervical vertebra, subsequent encounter for fracture with delayed healing | BILLABLE CODE |
| S12.130K | Unspecified traumatic displaced spondylolisthesis of second cervical vertebra, subsequent encounter for fracture with nonunion | BILLABLE CODE |
| S12.130S | Unspecified traumatic displaced spondylolisthesis of second cervical vertebra, sequela | BILLABLE CODE |
