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v1.0.0
ICD-10 Guide
ICD-10 CodesG57.3

G57.3

Billable

Lesion of lateral popliteal nerve

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

Code Description

ICD-10 G57.3 is a billable code used to indicate a diagnosis of lesion of lateral popliteal nerve.

Key Diagnostic Point:

The lateral popliteal nerve, also known as the common peroneal nerve, is a branch of the sciatic nerve that innervates the muscles of the lower leg and foot. A lesion of this nerve can result from various causes, including trauma, compression, or entrapment, leading to symptoms such as weakness in foot dorsiflexion, foot drop, and sensory loss over the lateral aspect of the leg and dorsum of the foot. Patients may present with difficulty walking, tripping, or an inability to lift the foot while walking. Diagnosis typically involves a thorough clinical examination, nerve conduction studies, and electromyography to assess the extent of nerve damage and rule out other neuropathies. Treatment may include physical therapy, orthotic devices, or surgical intervention depending on the severity and underlying cause of the lesion. Accurate coding is essential for proper reimbursement and to reflect the patient's condition in the medical record.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between various types of neuropathies
  • Understanding the anatomical pathways of the lateral popliteal nerve
  • Identifying the underlying cause of the lesion (trauma, compression, etc.)
  • Interpreting nerve conduction studies and electromyography results

Audit Risk Factors

  • Inadequate documentation of the cause of the lesion
  • Failure to include nerve conduction study results
  • Misclassification of the type of neuropathy
  • Lack of specificity in describing symptoms

Specialty Focus

Medical Specialties

Neurology

Documentation Requirements

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

Common Clinical Scenarios

Patients presenting with foot drop, numbness, or weakness in the lower extremities.

Billing Considerations

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

Orthopedics

Documentation Requirements

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

Common Clinical Scenarios

Patients with a history of knee surgery or trauma presenting with nerve symptoms.

Billing Considerations

Document any surgical interventions or conservative management strategies employed.

Coding Guidelines

Inclusion Criteria

Use G57.3 When
  • Follow the official ICD
  • CM guidelines for coding and reporting
  • Ensure that the documentation supports the diagnosis and that all relevant tests and findings are included
  • 3 should be used when the lesion is specifically identified as affecting the lateral popliteal nerve

Exclusion Criteria

Do NOT use G57.3 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

95900CPT Code

Nerve conduction study, each nerve; motor, sensory, or mixed

Clinical Scenario

Used to evaluate the function of the lateral popliteal nerve in patients with suspected lesions.

Documentation Requirements

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

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 nerve lesions, including the lateral popliteal nerve, which enhances the accuracy of patient records and facilitates better reimbursement processes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of nerve lesions, including the lateral popliteal nerve, which enhances the accuracy of patient records and facilitates better reimbursement processes.

Reimbursement & Billing Impact

reimbursement processes.

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 a lateral popliteal nerve lesion?

Common causes include trauma, compression from prolonged sitting or crossing legs, and surgical complications. Systemic conditions like diabetes can also contribute to nerve damage.