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v1.0.0
ICD-10 Guide
ICD-10 CodesG61.8

G61.8

Billable

Other inflammatory polyneuropathies

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 G61.8 is a billable code used to indicate a diagnosis of other inflammatory polyneuropathies.

Key Diagnostic Point:

G61.8 refers to a category of inflammatory polyneuropathies that do not fall under more specific classifications. These conditions are characterized by inflammation of multiple peripheral nerves, leading to symptoms such as weakness, numbness, and pain. Inflammatory polyneuropathies can arise from various causes, including autoimmune disorders, infections, and toxic exposures. Clinically, patients may present with a range of symptoms, including sensory disturbances, motor weakness, and autonomic dysfunction. Diagnosis often involves a combination of clinical evaluation, electrodiagnostic studies, and laboratory tests to identify underlying causes. Electrodiagnostic studies, such as nerve conduction studies and electromyography, are crucial in assessing the extent of nerve damage and differentiating between various types of neuropathies. The management of inflammatory polyneuropathies may include immunotherapy, symptomatic treatment, and addressing any underlying conditions. Accurate coding is essential for proper reimbursement and tracking of these complex conditions.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying causes leading to similar symptoms
  • Need for comprehensive clinical documentation
  • Differentiation from other types of neuropathies
  • Potential for overlapping diagnoses

Audit Risk Factors

  • Insufficient documentation of clinical findings
  • Lack of clear differentiation from other neuropathies
  • Inadequate justification for the use of G61.8
  • Failure to document underlying causes or contributing factors

Specialty Focus

Medical Specialties

Neurology

Documentation Requirements

Detailed clinical notes including history, physical examination findings, and results from electrodiagnostic studies.

Common Clinical Scenarios

Patients presenting with progressive weakness, sensory loss, or pain in the extremities.

Billing Considerations

Ensure that all relevant diagnostic tests are documented to support the diagnosis of inflammatory polyneuropathy.

Rheumatology

Documentation Requirements

Documentation of autoimmune markers, clinical symptoms, and response to treatment.

Common Clinical Scenarios

Patients with known autoimmune diseases presenting with new neurological symptoms.

Billing Considerations

Document any correlation between autoimmune conditions and neuropathic symptoms.

Coding Guidelines

Inclusion Criteria

Use G61.8 When
  • According to ICD
  • 10 guidelines, G61
  • 8 should be used when the specific type of inflammatory polyneuropathy is not classified elsewhere
  • Coders should ensure that the documentation supports the diagnosis and that other more specific codes are not applicable

Exclusion Criteria

Do NOT use G61.8 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

95900CPT Code

Nerve conduction studies

Clinical Scenario

Used to evaluate the extent of nerve damage in patients suspected of having inflammatory polyneuropathy.

Documentation Requirements

Document the specific nerves tested and the findings.

Specialty Considerations

Neurologists should ensure that the rationale for testing is clearly documented.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of inflammatory polyneuropathies, improving the accuracy of diagnoses and treatment tracking. G61.8 provides a necessary code for conditions that do not fit into more defined categories.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of inflammatory polyneuropathies, improving the accuracy of diagnoses and treatment tracking. G61.8 provides a necessary code for conditions that do not fit into more defined categories.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of inflammatory polyneuropathies, improving the accuracy of diagnoses and treatment tracking. G61.8 provides a necessary code for conditions that do not fit into more defined categories.

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 causes of inflammatory polyneuropathies?

Common causes include autoimmune diseases, infections, toxins, and certain medications. Each case may require specific diagnostic testing to identify the underlying cause.

How do electrodiagnostic studies assist in diagnosing G61.8?

Electrodiagnostic studies help assess nerve function and identify patterns of nerve damage, which are crucial for diagnosing inflammatory polyneuropathies and differentiating them from other neuropathies.