ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesG57.21

G57.21

Billable

Lesion of femoral nerve, right lower limb

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

Code Description

ICD-10 G57.21 is a billable code used to indicate a diagnosis of lesion of femoral nerve, right lower limb.

Key Diagnostic Point:

A lesion of the femoral nerve in the right lower limb can result from various causes, including trauma, compression, or systemic diseases such as diabetes. The femoral nerve is responsible for innervating the quadriceps muscle, which is crucial for knee extension, as well as providing sensation to the anterior thigh and part of the medial leg. Patients may present with symptoms such as weakness in knee extension, loss of sensation in the anterior thigh, and difficulty in activities such as walking or climbing stairs. Diagnosis typically involves a thorough clinical examination, nerve conduction studies, and possibly imaging studies to identify the underlying cause of the nerve lesion. Treatment may include physical therapy, pain management, and in some cases, surgical intervention to relieve compression or repair the nerve. Understanding the specific nature of the lesion and its impact on function is essential for effective management and rehabilitation.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between various types of nerve lesions
  • Understanding the anatomical implications of the femoral nerve
  • Identifying associated conditions that may complicate coding
  • Navigating documentation requirements for nerve conduction studies

Audit Risk Factors

  • Inadequate documentation of symptoms and clinical findings
  • Failure to specify the affected limb
  • Misinterpretation of nerve conduction study results
  • Inconsistent coding of associated conditions

Specialty Focus

Medical Specialties

Neurology

Documentation Requirements

Detailed neurological examination findings, including motor and sensory assessments.

Common Clinical Scenarios

Patients presenting with weakness or sensory loss in the lower limb.

Billing Considerations

Ensure clear documentation of the onset, duration, and progression of symptoms.

Orthopedics

Documentation Requirements

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

Common Clinical Scenarios

Post-surgical patients or those with trauma-related nerve injuries.

Billing Considerations

Document any surgical interventions or conservative management strategies employed.

Coding Guidelines

Inclusion Criteria

Use G57.21 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the lesion's location and any associated conditions
  • Include details from nerve conduction studies to support the diagnosis

Exclusion Criteria

Do NOT use G57.21 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

95900CPT Code

Nerve conduction studies, each nerve

Clinical Scenario

Used to confirm the diagnosis of femoral nerve lesions.

Documentation Requirements

Document the specific nerves tested and the results.

Specialty Considerations

Neurologists should ensure comprehensive reports are available for coding.

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, improving the accuracy of diagnoses and treatment plans. G57.21 provides a clear indication of the affected nerve and limb, facilitating better patient management.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of nerve lesions, improving the accuracy of diagnoses and treatment plans. G57.21 provides a clear indication of the affected nerve and limb, facilitating better patient management.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of nerve lesions, improving the accuracy of diagnoses and treatment plans. G57.21 provides a clear indication of the affected nerve and limb, facilitating better patient management.

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 femoral nerve lesions?

Common causes include trauma, compression from tumors or hematomas, surgical complications, and systemic diseases such as diabetes.