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ICD-10 Guide
ICD-10 CodesG61.81

G61.81

Billable

Chronic inflammatory demyelinating polyneuritis

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

Code Description

ICD-10 G61.81 is a billable code used to indicate a diagnosis of chronic inflammatory demyelinating polyneuritis.

Key Diagnostic Point:

Chronic inflammatory demyelinating polyneuritis (CIDP) is a neurological disorder characterized by progressive weakness and sensory loss due to the immune-mediated damage of peripheral nerves. It is classified as a type of autoimmune neuropathy, where the body's immune system mistakenly attacks the myelin sheath that insulates nerve fibers, leading to demyelination. Patients typically present with symptoms such as muscle weakness, numbness, tingling, and loss of reflexes, which can vary in severity and may affect both proximal and distal muscles. CIDP can be diagnosed through a combination of clinical evaluation, electrodiagnostic studies, and nerve biopsies. Electrodiagnostic studies, including nerve conduction studies (NCS) and electromyography (EMG), are crucial for assessing the extent of nerve damage and demyelination. The condition may be chronic, with symptoms persisting for months or years, and can lead to significant disability if not treated. Treatment options include corticosteroids, immunoglobulin therapy, and plasmapheresis, aimed at reducing inflammation and improving nerve function.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating CIDP from other types of neuropathies
  • Need for comprehensive clinical documentation
  • Interpretation of electrodiagnostic study results
  • Potential overlap with other autoimmune conditions

Audit Risk Factors

  • Inadequate documentation of clinical findings
  • Failure to include results of electrodiagnostic studies
  • Misclassification of CIDP as other neuropathies
  • Lack of treatment documentation

Specialty Focus

Medical Specialties

Neurology

Documentation Requirements

Detailed neurological examination findings, results of electrodiagnostic studies, and treatment plans.

Common Clinical Scenarios

Patients presenting with progressive weakness, sensory disturbances, and reflex changes.

Billing Considerations

Ensure comprehensive documentation of symptom onset, duration, and response to treatment.

Physical Medicine and Rehabilitation

Documentation Requirements

Functional assessments, treatment goals, and progress notes.

Common Clinical Scenarios

Rehabilitation needs for patients with CIDP-related disabilities.

Billing Considerations

Document functional limitations and rehabilitation interventions clearly.

Coding Guidelines

Inclusion Criteria

Use G61.81 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of the diagnosis and any associated conditions
  • Include details from electrodiagnostic studies to support the diagnosis of CIDP

Exclusion Criteria

Do NOT use G61.81 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

95900CPT Code

Nerve conduction studies

Clinical Scenario

Used to confirm diagnosis of CIDP through assessment of nerve conduction velocities.

Documentation Requirements

Document the specific nerves tested and results.

Specialty Considerations

Neurologists should ensure comprehensive reporting of findings.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of CIDP, improving the accuracy of diagnosis and treatment tracking. It has also facilitated better data collection for research and epidemiological studies.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of CIDP, improving the accuracy of diagnosis and treatment tracking. It has also facilitated better data collection for research and epidemiological studies.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of CIDP, improving the accuracy of diagnosis and treatment tracking. It has also facilitated better data collection for research and epidemiological studies.

Resources

Clinical References

  • •
    Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) Foundation International

Coding & Billing References

  • •
    Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) Foundation International

Frequently Asked Questions

What are the common symptoms of CIDP?

Common symptoms include progressive weakness, sensory loss, numbness, tingling, and loss of reflexes, which can vary in severity.

How is CIDP diagnosed?

CIDP is diagnosed through clinical evaluation, electrodiagnostic studies, and sometimes nerve biopsies to assess the extent of nerve damage.

What treatments are available for CIDP?

Treatment options include corticosteroids, immunoglobulin therapy, and plasmapheresis, aimed at reducing inflammation and improving nerve function.