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ICD-10 Guide
ICD-10 CodesG57.93

G57.93

Billable

Unspecified mononeuropathy of bilateral lower limbs

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

Code Description

ICD-10 G57.93 is a billable code used to indicate a diagnosis of unspecified mononeuropathy of bilateral lower limbs.

Key Diagnostic Point:

Unspecified mononeuropathy of bilateral lower limbs refers to a condition characterized by damage or dysfunction of a single peripheral nerve in both lower limbs, leading to symptoms such as pain, weakness, numbness, or tingling. This condition can arise from various etiologies, including compression, trauma, or systemic diseases such as diabetes or autoimmune disorders. The term 'unspecified' indicates that the precise nerve affected is not documented, which can complicate diagnosis and treatment. Clinically, patients may present with symptoms that can mimic other conditions, necessitating thorough evaluation. Diagnostic approaches often include nerve conduction studies (NCS) to assess the electrical activity of the nerves and electromyography (EMG) to evaluate muscle response. Treatment may involve addressing the underlying cause, physical therapy, and pain management. 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

  • Lack of specificity regarding the affected nerve
  • Variability in clinical presentation
  • Potential overlap with other neuropathic conditions
  • Need for comprehensive documentation to support diagnosis

Audit Risk Factors

  • Insufficient documentation of symptoms
  • Lack of clear diagnostic criteria
  • Inadequate justification for the unspecified designation
  • Failure to document nerve conduction studies

Specialty Focus

Medical Specialties

Neurology

Documentation Requirements

Detailed neurological examination findings, results of nerve conduction studies, and any relevant imaging studies.

Common Clinical Scenarios

Patients presenting with bilateral lower limb weakness, numbness, or pain without a clear diagnosis.

Billing Considerations

Ensure that all symptoms and diagnostic tests are well-documented to support the diagnosis of unspecified mononeuropathy.

Physical Medicine and Rehabilitation

Documentation Requirements

Functional assessments, treatment plans, and progress notes detailing the impact of symptoms on daily activities.

Common Clinical Scenarios

Patients undergoing rehabilitation for bilateral lower limb weakness due to neuropathy.

Billing Considerations

Documenting the functional limitations and response to therapy is crucial for accurate coding.

Coding Guidelines

Inclusion Criteria

Use G57.93 When
  • According to ICD
  • 10 guidelines, G57
  • 93 should be used when there is a clear clinical diagnosis of mononeuropathy affecting both lower limbs without specification of the nerve involved
  • Coders should ensure that documentation supports the bilateral nature of the condition and that other potential causes are ruled out

Exclusion Criteria

Do NOT use G57.93 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

95900CPT Code

Nerve conduction studies

Clinical Scenario

Used to evaluate the function of the nerves in patients with suspected neuropathy.

Documentation Requirements

Results of the nerve conduction studies must be documented, including the specific nerves tested and 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 detailed coding of neuropathies, including the ability to specify bilateral involvement. This has implications for reimbursement and tracking of healthcare outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more detailed coding of neuropathies, including the ability to specify bilateral involvement. This has implications for reimbursement and tracking of healthcare outcomes.

Reimbursement & Billing Impact

reimbursement and tracking of healthcare outcomes.

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 is the difference between G57.93 and G57.90?

G57.93 specifies bilateral involvement of mononeuropathy, while G57.90 is used for unspecified mononeuropathy without indicating whether it is unilateral or bilateral.