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ICD-10 Guide
ICD-10 CodesS13.13

S13.13

Billable

Subluxation and dislocation of C2/C3 cervical vertebrae

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

Code Description

ICD-10 S13.13 is a billable code used to indicate a diagnosis of subluxation and dislocation of c2/c3 cervical vertebrae.

Key Diagnostic Point:

Subluxation and dislocation of the C2/C3 cervical vertebrae refers to a condition where there is a partial or complete displacement of the second and third cervical vertebrae in the spine. This injury can occur due to trauma, such as a fall, motor vehicle accident, or sports-related injury. The cervical spine is critical for supporting the head and protecting the spinal cord, and injuries at this level can lead to significant neurological deficits. Symptoms may include neck pain, limited range of motion, headaches, and in severe cases, neurological symptoms such as weakness or numbness in the arms. Diagnosis typically involves a thorough clinical examination, imaging studies such as X-rays or MRI, and assessment of neurological function. Management may include conservative treatment like immobilization and physical therapy, or surgical intervention in cases of severe dislocation or neurological compromise. Complications can include chronic pain, instability, and potential long-term neurological deficits if not treated promptly.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between subluxation and complete dislocation
  • Need for precise documentation of the mechanism of injury
  • Potential for associated neurological injuries
  • Variability in treatment approaches based on severity

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury
  • Failure to document neurological assessments
  • Misclassification of the type of injury (subluxation vs. dislocation)
  • Lack of imaging results in the medical record

Specialty Focus

Medical Specialties

Emergency Medicine

Documentation Requirements

Documentation must include a detailed account of the mechanism of injury, initial assessment findings, and any neurological evaluations performed.

Common Clinical Scenarios

Patients presenting after a fall or motor vehicle accident with neck pain and limited mobility.

Billing Considerations

Emergency physicians should ensure that all relevant imaging studies are ordered and documented to support the diagnosis.

Surgery

Documentation Requirements

Operative reports must detail the surgical approach, findings, and any complications encountered during the procedure.

Common Clinical Scenarios

Patients requiring surgical intervention for stabilization of the cervical spine after dislocation.

Billing Considerations

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

Coding Guidelines

Inclusion Criteria

Use S13.13 When
  • Follow the official ICD
  • CM coding guidelines, ensuring that the code is supported by clinical documentation, including the mechanism of injury and any associated conditions

Exclusion Criteria

Do NOT use S13.13 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

22551CPT Code

Anterior cervical discectomy and fusion

Clinical Scenario

Used in cases where surgical intervention is required for dislocation or instability.

Documentation Requirements

Operative report detailing the procedure, indications, and any complications.

Specialty Considerations

Neurosurgeons and orthopedic surgeons should document the rationale for surgical intervention.

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 diagnoses and treatment plans. S13.13 provides a clear distinction between subluxation and dislocation, which is crucial for appropriate management.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of cervical spine injuries, improving the accuracy of diagnoses and treatment plans. S13.13 provides a clear distinction between subluxation and dislocation, which is crucial for appropriate management.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of cervical spine injuries, improving the accuracy of diagnoses and treatment plans. S13.13 provides a clear distinction between subluxation and dislocation, which is crucial for appropriate management.

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 is a complete separation of the joint surfaces.