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v1.0.0
ICD-10 Guide
DiagnosesMyoclonic Jerk

Myoclonic Jerk

ICD-10 Coding for Myoclonic Jerk(G25.3, G40.409)

PRIMARY SPECIALTYNeurology
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Myoclonic Jerk?
Essential facts and insights about Myoclonic Jerk

Key Clinical Considerations:

  • Sudden, brief muscle jerks or twitches
  • Electroencephalogram (EEG) showing myoclonic spikes
  • Neurological examination may reveal other seizure types

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history of myoclonic jerks
  • Description of frequency and triggers of jerks
  • EEG results and any imaging studies

Coding Guidelines

Usage Guidelines & Examples

  • Ensure correct application of G25.3 for myoclonic jerks versus other seizure types.
  • Common errors include misclassifying myoclonic jerks as generalized seizures.

Code Exclusions

Important Exclusions

  • Other types of seizures, such as tonic-clonic seizures
  • Alternative codes for related conditions like essential tremor

Related ICD-10 Codes

Primary Codes
G25.3
Myoclonus
Ancillary Codes
T36-T50
Differential Codes
G40.4-
G25.3

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Neurology

Specialty Applications

  • Patients with epilepsy, neurological disorders
  • Neurology clinics, outpatient settings

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

Documentation requirements?

Document the frequency, duration, and context of myoclonic jerks.

Billing considerations?

Ensure accurate coding to reflect the specific type of myoclonus for proper reimbursement.