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v1.0.0
ICD-10 Guide
ICD-10 CodesG58.8

G58.8

Billable

Other specified mononeuropathies

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

Code Description

ICD-10 G58.8 is a billable code used to indicate a diagnosis of other specified mononeuropathies.

Key Diagnostic Point:

G58.8 encompasses a variety of specific mononeuropathies that do not fall under the more commonly classified categories. Mononeuropathies are conditions that affect a single nerve or a group of nerves, leading to symptoms such as pain, weakness, or sensory disturbances in the affected area. This code is particularly relevant for cranial nerve disorders, nerve entrapments, and other neuropathies that may not have a specific ICD-10 designation. Common examples include atypical presentations of carpal tunnel syndrome, ulnar nerve entrapment, or isolated cranial nerve palsies. Diagnosis often involves a thorough clinical evaluation, including a detailed patient history and physical examination, followed by nerve conduction studies to assess the function of the affected nerve. The complexity of these conditions can vary widely, and accurate coding requires a comprehensive understanding of the underlying pathology and the specific clinical context in which the symptoms arise.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying causes leading to mononeuropathies
  • Need for detailed clinical documentation to specify the type of neuropathy
  • Potential overlap with other neuropathy codes
  • Variability in symptoms and presentations

Audit Risk Factors

  • Insufficient documentation of the specific type of mononeuropathy
  • Failure to include results from nerve conduction studies
  • Inconsistent coding of symptoms that may overlap with other neuropathies
  • Lack of clarity in the clinical rationale for the diagnosis

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 weakness, sensory loss, or pain in a specific distribution.

Billing Considerations

Ensure that the documentation clearly specifies the affected nerve and the clinical rationale for the diagnosis.

Orthopedics

Documentation Requirements

Clinical notes detailing physical examination findings, imaging results, and treatment plans.

Common Clinical Scenarios

Patients with symptoms of nerve entrapment due to anatomical abnormalities or repetitive strain injuries.

Billing Considerations

Document any surgical interventions or conservative management strategies employed.

Coding Guidelines

Inclusion Criteria

Use G58.8 When
  • According to ICD
  • 10 coding guidelines, G58
  • 8 should be used when the specific mononeuropathy is not classified elsewhere
  • Coders must ensure that the documentation supports the diagnosis and that all relevant clinical details are included

Exclusion Criteria

Do NOT use G58.8 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

95903CPT Code

Nerve conduction study, each nerve

Clinical Scenario

Used to confirm the diagnosis of mononeuropathy.

Documentation Requirements

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

Specialty Considerations

Neurologists should ensure that the clinical rationale for the study 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 mononeuropathies, enabling better tracking of these conditions and their management. G58.8 provides a necessary option for conditions that do not fit neatly into other categories.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of mononeuropathies, enabling better tracking of these conditions and their management. G58.8 provides a necessary option for conditions that do not fit neatly into other categories.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of mononeuropathies, enabling better tracking of these conditions and their management. G58.8 provides a necessary option for conditions that do not fit neatly into other categories.

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 types of conditions are included under G58.8?

G58.8 includes various mononeuropathies that do not have a specific code, such as atypical nerve entrapments and isolated cranial nerve disorders.