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v1.0.0
ICD-10 Guide
ICD-10 CodesR27.0

R27.0

Ataxia, unspecified

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

Code Description

ICD-10 R27.0 is a billable code used to indicate a diagnosis of ataxia, unspecified.

Key Diagnostic Point:

Ataxia is a neurological sign characterized by a lack of voluntary coordination of muscle movements, which can affect gait, posture, and speech. The term 'unspecified' indicates that the exact cause of the ataxia has not been determined. Symptoms may include unsteady gait, difficulty with fine motor tasks, and slurred speech. Ataxia can arise from various underlying conditions, including neurological disorders, metabolic issues, or intoxication. Common causes include cerebellar degeneration, multiple sclerosis, vitamin deficiencies (such as B12), and hereditary ataxias. Clinical evaluation often involves a thorough neurological examination, imaging studies (like MRI), and laboratory tests to identify potential metabolic or toxic causes. The complexity of diagnosing ataxia lies in the broad differential diagnosis and the need for comprehensive clinical assessment to pinpoint the underlying etiology.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of potential underlying causes
  • Need for comprehensive diagnostic workup
  • Differential diagnosis includes multiple specialties
  • Documentation of clinical findings must be precise

Audit Risk Factors

  • Inadequate documentation of clinical findings
  • Failure to specify underlying causes when known
  • Misuse of unspecified codes leading to denials
  • Inconsistent coding across different encounters

Specialty Focus

Medical Specialties

Internal Medicine

Documentation Requirements

Detailed history of symptoms, neurological examination findings, and any relevant lab results.

Common Clinical Scenarios

Patients presenting with unsteady gait or coordination issues during routine check-ups.

Billing Considerations

Consideration of metabolic disorders and vitamin deficiencies in older patients.

Emergency Medicine

Documentation Requirements

Acute assessment of neurological status, including vital signs and immediate lab results.

Common Clinical Scenarios

Patients presenting with sudden onset ataxia due to stroke or intoxication.

Billing Considerations

Rapid identification of life-threatening causes is crucial.

Coding Guidelines

Inclusion Criteria

Use R27.0 When
  • Follow the official ICD
  • CM coding guidelines, ensuring that the code is used only when the cause of ataxia is not specified
  • Document all relevant clinical findings and diagnostic tests performed

Exclusion Criteria

Do NOT use R27.0 When
No specific exclusions found.

Related CPT Codes

99214CPT Code

Established patient office visit, level 4

Clinical Scenario

Used for follow-up visits for patients with chronic ataxia.

Documentation Requirements

Document history, examination, and medical decision-making.

Specialty Considerations

Internal medicine may require additional lab tests.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of ataxia, improving the ability to capture the complexity of the condition and its underlying causes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of ataxia, improving the ability to capture the complexity of the condition and its underlying causes.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of ataxia, improving the ability to capture the complexity of the condition and its underlying causes.

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 should I document to support the use of R27.0?

Document the patient's clinical presentation, neurological examination findings, and any relevant diagnostic tests performed to rule out specific causes of ataxia.