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v1.0.0
ICD-10 Guide
ICD-10 CodesR25.3

R25.3

Fasciculation

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/11/2025

Code Description

ICD-10 R25.3 is a billable code used to indicate a diagnosis of fasciculation.

Key Diagnostic Point:

Fasciculation refers to involuntary, spontaneous muscle contractions that are visible under the skin. These contractions can occur in any skeletal muscle and are often benign, but they may also indicate underlying neurological conditions. Fasciculations can be caused by a variety of factors including fatigue, stress, electrolyte imbalances, or neurological disorders such as amyotrophic lateral sclerosis (ALS) or peripheral neuropathy. Clinically, fasciculations may present as twitching or quivering of muscles, often accompanied by muscle cramps or weakness. While they are typically harmless, persistent or widespread fasciculations warrant further investigation to rule out serious conditions. The diagnostic approach includes a thorough patient history, neurological examination, and possibly electromyography (EMG) to assess muscle and nerve function. Laboratory tests may be conducted to check for electrolyte levels and other metabolic factors. Accurate documentation of the frequency, duration, and associated symptoms of fasciculations is crucial for proper coding and management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of potential underlying causes
  • Need for thorough documentation of symptoms
  • Differentiation from other neuromuscular disorders
  • Potential overlap with other ICD-10 codes

Audit Risk Factors

  • Inadequate documentation of symptoms
  • Failure to specify the duration and frequency of fasciculations
  • Misdiagnosis leading to incorrect coding
  • Lack of supporting clinical findings in the medical record

Specialty Focus

Medical Specialties

Internal Medicine

Documentation Requirements

Detailed history of symptoms, including onset, duration, and associated factors.

Common Clinical Scenarios

Patients presenting with muscle twitching after exercise or stress.

Billing Considerations

Consideration of metabolic causes and comprehensive neurological evaluation.

Emergency Medicine

Documentation Requirements

Acute assessment of fasciculations, including vital signs and neurological status.

Common Clinical Scenarios

Patients presenting with acute muscle twitching and associated symptoms like weakness or pain.

Billing Considerations

Rapid evaluation for potential life-threatening conditions such as electrolyte imbalances.

Coding Guidelines

Inclusion Criteria

Use R25.3 When
  • Follow official ICD
  • CM guidelines for coding symptoms and signs
  • Ensure that the documentation supports the diagnosis of fasciculation and any associated conditions

Exclusion Criteria

Do NOT use R25.3 When
No specific exclusions found.

Related CPT Codes

95860CPT Code

Electromyography (EMG)

Clinical Scenario

When fasciculations are suspected to be due to a neurological disorder.

Documentation Requirements

Document the rationale for EMG and findings related to fasciculations.

Specialty Considerations

Neurology specialists may require more detailed documentation of symptoms.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of symptoms like fasciculations, improving the granularity of data for clinical analysis and research.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of symptoms like fasciculations, improving the granularity of data for clinical analysis and research.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of symptoms like fasciculations, improving the granularity of data for clinical analysis and research.

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 should I document when coding for fasciculations?

Document the frequency, duration, and location of fasciculations, as well as any associated symptoms or potential triggers.