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ICD-10 Guide
ICD-10 CodesS12.101

S12.101

Billable

Unspecified nondisplaced fracture of second cervical vertebra

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

Code Description

ICD-10 S12.101 is a billable code used to indicate a diagnosis of unspecified nondisplaced fracture of second cervical vertebra.

Key Diagnostic Point:

The S12.101 code refers to an unspecified nondisplaced fracture of the second cervical vertebra (C2), commonly known as the axis. This type of fracture typically occurs due to trauma, such as falls, motor vehicle accidents, or sports injuries. Nondisplaced fractures indicate that the bone has cracked but remains in its normal anatomical position, which may lead to less severe symptoms compared to displaced fractures. Clinical presentation often includes neck pain, limited range of motion, and potential neurological symptoms if the spinal cord is affected. Diagnosis is primarily through imaging studies, such as X-rays or MRI, to confirm the fracture and assess any associated injuries. Management usually involves conservative treatment, including immobilization with a cervical collar and pain management, although surgical intervention may be necessary in cases of instability or neurological compromise. Complications can include chronic pain, reduced mobility, or, in severe cases, spinal cord injury. Accurate coding requires thorough documentation of the mechanism of injury, clinical findings, and treatment provided.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and symptoms
  • Need for precise documentation of injury mechanism
  • Differentiation from other cervical spine injuries
  • Potential for associated neurological complications

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury
  • Failure to specify the type of fracture
  • Misinterpretation of imaging results
  • Inconsistent treatment documentation

Specialty Focus

Medical Specialties

Emergency Medicine

Documentation Requirements

Documentation must include the mechanism of injury, initial assessment findings, and any imaging results.

Common Clinical Scenarios

Patients presenting after falls, sports injuries, or motor vehicle accidents.

Billing Considerations

Ensure that all neurological assessments are documented, especially if there are signs of spinal cord involvement.

Surgery

Documentation Requirements

Operative reports must detail the surgical approach, findings, and any fixation methods used.

Common Clinical Scenarios

Surgical intervention for unstable fractures or those with neurological deficits.

Billing Considerations

Document any pre-existing conditions that may affect surgical outcomes.

Coding Guidelines

Inclusion Criteria

Use S12.101 When
  • Follow the official ICD
  • CM coding guidelines, ensuring that the code reflects the specific nature of the fracture and any associated injuries
  • Document the mechanism of injury and clinical findings thoroughly

Exclusion Criteria

Do NOT use S12.101 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

22551CPT Code

Anterior cervical discectomy and fusion

Clinical Scenario

Used when surgical intervention is required for stabilization.

Documentation Requirements

Operative report detailing the procedure and indications.

Specialty Considerations

Ensure that the surgical necessity is well 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 diagnosis and treatment tracking. S12.101 provides a clear designation for nondisplaced fractures, which aids in clinical management and billing.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of cervical spine injuries, improving the accuracy of diagnosis and treatment tracking. S12.101 provides a clear designation for nondisplaced fractures, which aids in clinical management and billing.

Reimbursement & Billing Impact

billing.

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 a displaced and nondisplaced fracture?

A displaced fracture involves a break where the bone fragments are separated, while a nondisplaced fracture means the bone cracks but remains aligned.