| S1201XK | Stable burst fracture of first cervical vertebra, subsequent encounter for fracture with nonunion |
| S1201XS | Stable burst fracture of first cervical vertebra, sequela |
| S1202 | Unstable burst fracture of first cervical vertebra |
| S1202XA | Unstable burst fracture of first cervical vertebra, initial encounter for closed fracture |
| S1202XB | Unstable burst fracture of first cervical vertebra, initial encounter for open fracture |
| S1202XD | Unstbl burst fx first cervcal vert, subs for fx w routn heal Unstable burst fracture of first cervical vertebra, subsequent encounter for fracture with routine healing |
| S1202XG | Unstbl burst fx first cervcal vert, subs for fx w delay heal Unstable burst fracture of first cervical vertebra, subsequent encounter for fracture with delayed healing |
| S1202XK | Unstable burst fracture of first cervical vertebra, subsequent encounter for fracture with nonunion |
| S1202XS | Unstable burst fracture of first cervical vertebra, sequela |
| S1203 | Posterior arch fracture of first cervical vertebra |
| S12030 | Displaced posterior arch fracture of first cervical vertebra Displaced posterior arch fracture of first cervical vertebra |
| S12030A | Displaced posterior arch fracture of first cervical vertebra, initial encounter for closed fracture |
| S12030B | Displaced posterior arch fracture of first cervical vertebra, initial encounter for open fracture |
| S12030D | Displaced posterior arch fracture of first cervical vertebra, subsequent encounter for fracture with routine healing |
| S12030G | Displaced posterior arch fracture of first cervical vertebra, subsequent encounter for fracture with delayed healing |
| S12030K | Displaced posterior arch fracture of first cervical vertebra, subsequent encounter for fracture with nonunion |
| S12030S | Displaced posterior arch fracture of first cervical vertebra, sequela |
| S12031 | Nondisplaced posterior arch fracture of first cervical vertebra |
| S12031A | Nondisplaced posterior arch fracture of first cervical vertebra, initial encounter for closed fracture |
| S12031B | Nondisp post arch fx first cervcal vertebra, init for opn fx Nondisplaced posterior arch fracture of first cervical vertebra, initial encounter for open fracture |
| S12031D | Nondisplaced posterior arch fracture of first cervical vertebra, subsequent encounter for fracture with routine healing |
| S12031G | Nondisplaced posterior arch fracture of first cervical vertebra, subsequent encounter for fracture with delayed healing |
| S12031K | Nondisplaced posterior arch fracture of first cervical vertebra, subsequent encounter for fracture with nonunion |
| S12031S | Nondisplaced posterior arch fracture of first cervical vertebra, sequela |
| S1204 | Lateral mass fracture of first cervical vertebra |
| S12040 | Displaced lateral mass fracture of first cervical vertebra |
| S12040A | Displaced lateral mass fracture of first cervical vertebra, initial encounter for closed fracture |
| S12040B | Displaced lateral mass fracture of first cervical vertebra, initial encounter for open fracture |
| S12040D | Displaced lateral mass fracture of first cervical vertebra, subsequent encounter for fracture with routine healing |
| S12040G | Displaced lateral mass fracture of first cervical vertebra, subsequent encounter for fracture with delayed healing |
| S12040K | Displaced lateral mass fracture of first cervical vertebra, subsequent encounter for fracture with nonunion |
| S12040S | Displaced lateral mass fracture of first cervical vertebra, sequela |
| S12041 | Nondisplaced lateral mass fracture of first cervcal vertebra Nondisplaced lateral mass fracture of first cervical vertebra |
| S12041A | Nondisplaced lateral mass fracture of first cervical vertebra, initial encounter for closed fracture |
| S12041B | Nondisplaced lateral mass fracture of first cervical vertebra, initial encounter for open fracture |
| S12041D | Nondisplaced lateral mass fracture of first cervical vertebra, subsequent encounter for fracture with routine healing |
| S12041G | Nondisplaced lateral mass fracture of first cervical vertebra, subsequent encounter for fracture with delayed healing |
| S12041K | Nondisplaced lateral mass fracture of first cervical vertebra, subsequent encounter for fracture with nonunion |
| S12041S | Nondisplaced lateral mass fracture of first cervical vertebra, sequela |
| S1209 | Other fracture of first cervical vertebra |
| S12090 | Other displaced fracture of first cervical vertebra |
| S12090A | Other displaced fracture of first cervical vertebra, initial encounter for closed fracture |
| S12090B | Other displaced fracture of first cervical vertebra, initial encounter for open fracture |
| S12090D | Other displaced fracture of first cervical vertebra, subsequent encounter for fracture with routine healing |
| S12090G | Other displaced fracture of first cervical vertebra, subsequent encounter for fracture with delayed healing |
| S12090K | Other displaced fracture of first cervical vertebra, subsequent encounter for fracture with nonunion |
| S12090S | Other displaced fracture of first cervical vertebra, sequela Other displaced fracture of first cervical vertebra, sequela |
| S12091 | Other nondisplaced fracture of first cervical vertebra |
| S12091A | Other nondisplaced fracture of first cervical vertebra, initial encounter for closed fracture |
| S12091B | Other nondisplaced fracture of first cervical vertebra, initial encounter for open fracture |