| S12.230 | Unspecified traumatic displaced spondylolisthesis of third cervical vertebra | NON-BILLABLE CODE |
| S12.230A | Unspecified traumatic displaced spondylolisthesis of third cervical vertebra, initial encounter for closed fracture | BILLABLE CODE |
| S12.230B | Unspecified traumatic displaced spondylolisthesis of third cervical vertebra, initial encounter for open fracture | BILLABLE CODE |
| S12.230D | Unspecified traumatic displaced spondylolisthesis of third cervical vertebra, subsequent encounter for fracture with routine healing | BILLABLE CODE |
| S12.230G | Unspecified traumatic displaced spondylolisthesis of third cervical vertebra, subsequent encounter for fracture with delayed healing | BILLABLE CODE |
| S12.230K | Unspecified traumatic displaced spondylolisthesis of third cervical vertebra, subsequent encounter for fracture with nonunion | BILLABLE CODE |
| S12.230S | Unspecified traumatic displaced spondylolisthesis of third cervical vertebra, sequela | BILLABLE CODE |
| S12.231 | Unspecified traumatic nondisplaced spondylolisthesis of third cervical vertebra | NON-BILLABLE CODE |
| S12.231A | Unspecified traumatic nondisplaced spondylolisthesis of third cervical vertebra, initial encounter for closed fracture | BILLABLE CODE |
| S12.231B | Unspecified traumatic nondisplaced spondylolisthesis of third cervical vertebra, initial encounter for open fracture | BILLABLE CODE |
| S12.231D | Unspecified traumatic nondisplaced spondylolisthesis of third cervical vertebra, subsequent encounter for fracture with routine healing | BILLABLE CODE |
| S12.231G | Unspecified traumatic nondisplaced spondylolisthesis of third cervical vertebra, subsequent encounter for fracture with delayed healing | BILLABLE CODE |
| S12.231K | Unspecified traumatic nondisplaced spondylolisthesis of third cervical vertebra, subsequent encounter for fracture with nonunion | BILLABLE CODE |
| S12.231S | Unspecified traumatic nondisplaced spondylolisthesis of third cervical vertebra, sequela | BILLABLE CODE |
