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ICD-10 Guide
ICD-10 CodesM47.021

M47.021

Billable

Vertebral artery compression syndromes, occipito-atlanto-axial region

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/17/2025

Code Description

ICD-10 M47.021 is a billable code used to indicate a diagnosis of vertebral artery compression syndromes, occipito-atlanto-axial region.

Key Diagnostic Point:

Vertebral artery compression syndromes in the occipito-atlanto-axial region refer to a condition where the vertebral arteries, which supply blood to the brain, are compressed due to structural abnormalities in the cervical spine. This can occur due to various spondylopathies, including ankylosing spondylitis, which leads to inflammation and fusion of the spinal vertebrae, resulting in reduced mobility and potential compression of the arteries. Spinal stenosis, characterized by narrowing of the spinal canal, can also contribute to this syndrome by encroaching on the vertebral arteries. Inflammatory spine conditions can exacerbate these issues, leading to symptoms such as dizziness, headaches, and neurological deficits. Accurate diagnosis often involves imaging studies like MRI or CT scans to visualize the cervical spine and assess for any structural abnormalities. Treatment may include physical therapy, pain management, and in severe cases, surgical intervention to relieve compression.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between various types of spondylopathies
  • Identifying the specific anatomical region affected
  • Understanding the relationship between symptoms and underlying conditions
  • Navigating the documentation requirements for multiple specialties

Audit Risk Factors

  • Inadequate documentation of symptoms related to vertebral artery compression
  • Failure to specify the anatomical region affected
  • Misclassification of the underlying spondylopathy
  • Lack of imaging studies to support the diagnosis

Specialty Focus

Medical Specialties

Neurology

Documentation Requirements

Detailed neurological examination findings, imaging results, and symptom descriptions.

Common Clinical Scenarios

Patients presenting with dizziness, headaches, or neurological deficits.

Billing Considerations

Ensure clear documentation of the relationship between symptoms and vertebral artery compression.

Orthopedics

Documentation Requirements

Comprehensive assessment of spinal alignment, mobility, and imaging studies.

Common Clinical Scenarios

Patients with chronic neck pain and history of spondylopathy.

Billing Considerations

Document any surgical interventions or conservative management strategies.

Coding Guidelines

Inclusion Criteria

Use M47.021 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of the condition's severity and any associated symptoms
  • Include imaging results and specify the anatomical region affected

Exclusion Criteria

Do NOT use M47.021 When
  • Exclude conditions that do not directly relate to vertebral artery compression

Related ICD-10 Codes

Related CPT Codes

63030CPT Code

Laminectomy, cervical

Clinical Scenario

Used when surgical intervention is required for decompression.

Documentation Requirements

Document the need for surgery based on imaging and clinical findings.

Specialty Considerations

Orthopedic surgeons should provide detailed operative notes.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of vertebral artery compression syndromes, improving the accuracy of diagnoses and treatment plans. This specificity aids in better tracking of patient outcomes and resource allocation.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of vertebral artery compression syndromes, improving the accuracy of diagnoses and treatment plans. This specificity aids in better tracking of patient outcomes and resource allocation.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of vertebral artery compression syndromes, improving the accuracy of diagnoses and treatment plans. This specificity aids in better tracking of patient outcomes and resource allocation.

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 are the common symptoms of vertebral artery compression syndromes?

Common symptoms include dizziness, headaches, visual disturbances, and neurological deficits due to reduced blood flow to the brain.

How is vertebral artery compression diagnosed?

Diagnosis typically involves a combination of clinical evaluation, imaging studies such as MRI or CT scans, and assessment of symptoms.