S12.02XK ICD-10-CM Code: Unstable burst fracture of first cervical vertebra, subsequent encounter for fracture with nonunion
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Inpatient Payment Groups (MS-DRG)
MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0 (FY2026), Appendix B.
- MS-DRG 564 — OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITH MCC (MDC 08)
- MS-DRG 565 — OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITH CC (MDC 08)
- MS-DRG 566 — OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITHOUT CC/MCC (MDC 08)
A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.
Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.
Official Registry Overview & Definition
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for S12.02XK in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- fracture of cervical neural arch
- fracture of cervical spine
- fracture of cervical spinous process
- fracture of cervical transverse process
- fracture of cervical vertebral arch
- fracture of neck
- injuries of nape
- injuries of supraclavicular region
- injuries of throat
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- burns and corrosions (T20-T32)
- effects of foreign body in esophagus (T18.1)
- effects of foreign body in larynx (T17.3)
- effects of foreign body in pharynx (T17.2)
- effects of foreign body in trachea (T17.4)
- frostbite (T33-T34)
- insect bite or sting, venomous (T63.4)
Code First
Underlying conditions that must be sequenced before this code.
- any associated cervical spinal cord injury (S14.0, S14.1-)
Frequently Asked Questions (FAQ) & Clinical Guidance
Does S12.02XK require a 7th character?
Yes. The appropriate 7th character is to be added to all codes from subcategories S12.0-S12.6.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to S12.02XK in its code family, with their registry titles.
- S12.02 — Unstable burst fracture of first cervical vertebra
- S12.02XA — Unstable burst fracture of first cervical vertebra, initial encounter for closed fracture
- S12.02XB — Unstable burst fracture of first cervical vertebra, initial encounter for open fracture
- S12.02XD — Unstable burst fracture of first cervical vertebra, subsequent encounter for fracture with routine healing
- S12.02XG — Unstable burst fracture of first cervical vertebra, subsequent encounter for fracture with delayed healing
- S12.02XS — Unstable burst fracture of first cervical vertebra, sequela
- S12.03 — Posterior arch fracture of first cervical vertebra
- S12.030 — Displaced posterior arch fracture of first cervical vertebra
- S12.030A — Displaced posterior arch fracture of first cervical vertebra, initial encounter for closed fracture
- S12.030B — Displaced posterior arch fracture of first cervical vertebra, initial encounter for open fracture