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ICD-10 Guide
ICD-10 CodesS12.191

S12.191

Billable

Other nondisplaced fracture of second cervical vertebra

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

Code Description

ICD-10 S12.191 is a billable code used to indicate a diagnosis of other nondisplaced fracture of second cervical vertebra.

Key Diagnostic Point:

The S12.191 code refers to a nondisplaced fracture of the second cervical vertebra (C2), which is a critical component of the cervical spine. Nondisplaced fractures are characterized by the bone being cracked but not misaligned, allowing for a potentially less complicated healing process. The C2 vertebra, also known as the axis, plays a vital role in the rotation of the head and supports the skull. Injuries to this area can occur due to various mechanisms, including falls, motor vehicle accidents, or sports-related injuries. Clinical presentation may include neck pain, limited range of motion, and neurological symptoms if there is spinal cord involvement. Diagnosis typically involves imaging studies such as X-rays, CT scans, or MRIs to confirm the fracture and assess for any associated injuries. Management may include conservative treatment with immobilization or, in some cases, surgical intervention if instability or neurological compromise is present. Complications can include chronic pain, neurological deficits, or nonunion of the fracture. Accurate coding is essential for proper treatment and reimbursement, necessitating thorough documentation of the injury mechanism and clinical findings.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between displaced and nondisplaced fractures
  • Understanding the anatomical significance of the cervical vertebrae
  • Documenting the mechanism of injury accurately
  • Identifying associated injuries or complications

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury
  • Failure to specify the nondisplaced nature of the fracture
  • Misclassification of fracture type (displaced vs. nondisplaced)
  • Lack of imaging documentation to support the diagnosis

Specialty Focus

Medical Specialties

Emergency Medicine

Documentation Requirements

Documentation must include a detailed account of the patient's presentation, mechanism of injury, and initial assessment findings.

Common Clinical Scenarios

Trauma patients presenting after falls or vehicular accidents with neck pain.

Billing Considerations

Ensure that all imaging results are documented and correlate with the clinical findings.

Surgery

Documentation Requirements

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

Common Clinical Scenarios

Patients requiring surgical intervention for stabilization of the cervical spine.

Billing Considerations

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

Coding Guidelines

Inclusion Criteria

Use S12.191 When
  • Follow the official ICD
  • CM coding guidelines, ensuring that the code accurately reflects the clinical scenario
  • Document the mechanism of injury and any associated conditions to support the use of this code

Exclusion Criteria

Do NOT use S12.191 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 necessary for stabilization.

Documentation Requirements

Operative report must detail the procedure and indications.

Specialty Considerations

Ensure that the surgical necessity is well-documented to support the procedure.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of fractures, improving the granularity of data for clinical and billing purposes. S12.191 provides a clear distinction for nondisplaced fractures, which aids in treatment planning and reimbursement.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of fractures, improving the granularity of data for clinical and billing purposes. S12.191 provides a clear distinction for nondisplaced fractures, which aids in treatment planning and reimbursement.

Reimbursement & Billing Impact

billing purposes. S12.191 provides a clear distinction for nondisplaced fractures, which aids in treatment planning and reimbursement.

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 in the bone where the ends are misaligned, while a nondisplaced fracture means the bone cracks but remains in its normal position.