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ICD-10 Guide
ICD-10 CodesS13.12

S13.12

Billable

Subluxation and dislocation of C1/C2 cervical vertebrae

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/11/2025

Code Description

ICD-10 S13.12 is a billable code used to indicate a diagnosis of subluxation and dislocation of c1/c2 cervical vertebrae.

Key Diagnostic Point:

Subluxation and dislocation of the C1 and C2 cervical vertebrae, also known as the atlas and axis, respectively, can occur due to trauma, such as motor vehicle accidents, falls, or sports injuries. These injuries can lead to instability in the cervical spine, resulting in neurological deficits, pain, and restricted mobility. The C1 vertebra supports the skull and allows for nodding movements, while the C2 vertebra facilitates rotation of the head. Dislocation or subluxation at this level can compromise the spinal cord and vertebral arteries, leading to serious complications. Clinical evaluation typically includes a thorough history, physical examination, and imaging studies such as X-rays, CT scans, or MRIs to assess the extent of the injury and any associated neurological involvement. Management may involve conservative treatment, such as immobilization with a cervical collar, or surgical intervention to stabilize the vertebrae and decompress the spinal cord if necessary.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between subluxation and complete dislocation
  • Identifying associated neurological deficits
  • Understanding the mechanism of injury
  • Documenting imaging findings accurately

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury
  • Failure to specify the type of dislocation (subluxation vs. complete)
  • Missing neurological assessment findings
  • Incorrect linkage of diagnosis to treatment procedures

Specialty Focus

Medical Specialties

Emergency Medicine

Documentation Requirements

Documentation must include a detailed account of the mechanism of injury, neurological assessment, and imaging results.

Common Clinical Scenarios

Trauma patients presenting with neck pain after a fall or motor vehicle accident.

Billing Considerations

Ensure that all relevant imaging studies are documented and that any neurological deficits are clearly noted.

Surgery

Documentation Requirements

Operative reports must detail the surgical approach, findings, and any stabilization techniques used.

Common Clinical Scenarios

Patients requiring surgical intervention for cervical stabilization after dislocation.

Billing Considerations

Document the rationale for surgical intervention and any pre-existing conditions that may affect recovery.

Coding Guidelines

Inclusion Criteria

Use S13.12 When
  • Follow ICD
  • CM guidelines for coding injuries, ensuring that the specific site and type of injury are accurately captured
  • Use additional codes for any associated conditions or complications

Exclusion Criteria

Do NOT use S13.12 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

63015CPT Code

Laminectomy, cervical, single segment

Clinical Scenario

Performed for decompression in cases of dislocation with neurological compromise.

Documentation Requirements

Operative report must detail the procedure and any findings.

Specialty Considerations

Ensure that the indication for surgery is clearly documented.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of cervical spine injuries, improving the accuracy of data collection and reimbursement processes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of cervical spine injuries, improving the accuracy of data collection and reimbursement processes.

Reimbursement & Billing Impact

reimbursement processes.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What is the difference between subluxation and dislocation?

Subluxation refers to a partial dislocation where the joint surfaces are misaligned but still in contact, while dislocation indicates a complete separation of the joint surfaces.