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ICD-10 Guide
ICD-10 CodesG57.81

G57.81

Billable

Other specified mononeuropathies of right lower limb

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

Code Description

ICD-10 G57.81 is a billable code used to indicate a diagnosis of other specified mononeuropathies of right lower limb.

Key Diagnostic Point:

G57.81 refers to other specified mononeuropathies affecting the right lower limb, which can result from various underlying conditions such as trauma, compression, or systemic diseases. Mononeuropathies are characterized by damage to a single nerve, leading to symptoms such as pain, weakness, or sensory disturbances in the affected area. In the right lower limb, this may involve nerves such as the peroneal or tibial nerves, which can be affected by entrapment syndromes like peroneal nerve palsy or tarsal tunnel syndrome. Diagnosis often involves a thorough clinical examination, patient history, and may include nerve conduction studies to assess the function of the affected nerve. These studies help differentiate between neuropathies and other conditions that may mimic their symptoms. Treatment typically focuses on addressing the underlying cause, managing symptoms, and may involve physical therapy, medications, or surgical interventions in severe cases. Accurate coding is essential for proper reimbursement and to reflect the complexity of the patient's condition.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of potential underlying causes
  • Need for detailed clinical documentation
  • Differentiation from other neuropathies
  • Potential for co-existing conditions

Audit Risk Factors

  • Inadequate documentation of symptoms
  • Failure to specify the affected nerve
  • Lack of supporting diagnostic tests
  • Misuse of related codes

Specialty Focus

Medical Specialties

Neurology

Documentation Requirements

Detailed neurological examination findings, results of nerve conduction studies, and patient history.

Common Clinical Scenarios

Patients presenting with unilateral leg weakness, numbness, or pain.

Billing Considerations

Ensure clear documentation of the specific nerve affected and the nature of the neuropathy.

Orthopedics

Documentation Requirements

Surgical notes if applicable, imaging studies, and physical examination results.

Common Clinical Scenarios

Patients with traumatic injuries leading to nerve compression or entrapment.

Billing Considerations

Document any surgical interventions or conservative management strategies employed.

Coding Guidelines

Inclusion Criteria

Use G57.81 When
  • Follow the official ICD
  • CM coding guidelines, ensuring that the code is used only when the condition is specifically documented
  • Include any relevant diagnostic tests and clinical findings to support the use of G57

Exclusion Criteria

Do NOT use G57.81 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

95903CPT Code

Nerve conduction study, motor

Clinical Scenario

Used to evaluate the function of the affected nerve in cases of suspected mononeuropathy.

Documentation Requirements

Document the specific nerves tested and the results of the study.

Specialty Considerations

Neurologists should ensure that the study correlates with clinical findings.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of mononeuropathies, improving the accuracy of diagnoses and treatment plans. G57.81 provides a clear classification for other specified mononeuropathies of the right lower limb, facilitating better patient management and reimbursement.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of mononeuropathies, improving the accuracy of diagnoses and treatment plans. G57.81 provides a clear classification for other specified mononeuropathies of the right lower limb, facilitating better patient management and reimbursement.

Reimbursement & Billing Impact

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 are the common causes of mononeuropathies in the right lower limb?

Common causes include trauma, compression syndromes, systemic diseases like diabetes, and repetitive stress injuries.

How can nerve conduction studies assist in diagnosing G57.81?

Nerve conduction studies measure the electrical activity of the affected nerve, helping to confirm the diagnosis and differentiate it from other conditions.