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Home/Diagnosis/ICD-10 Coding for Complex Partial Seizure

ICD-10 Coding for Complex Partial Seizure

G40.209
G40.219

Complete ICD-10-CM coding and documentation guide for icd-10 coding for complex partial seizure includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Focal Impaired Awareness Seizure
Temporal Lobe Seizure
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Key Information: ICD-10 Coding for Complex Partial Seizure

Essential facts and insights about ICD-10 Coding for Complex Partial Seizure

Use ICD-10 code G40.209 for complex partial seizures, not intractable, without status epilepticus, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Complex partial seizures, not intractable, without status epilepticus

Billable Code
G40.209
Billable

Diagnostic Criteria

clinical:
  • • EEG shows focal discharges without intractability
documentation:
  • • Seizure type and status clearly documented

Applicable To

  • • Focal impaired awareness seizures

Important Notes

  • • Ensure documentation specifies seizure type and intractability status.

Complex partial seizures, intractable, without status epilepticus

Billable Code
G40.219
Billable

Diagnostic Criteria

clinical:
  • • Documented failure of ≥2 AEDs
  • • Ongoing seizures despite adequate dosing/duration

Applicable To

  • • Intractable focal impaired awareness seizures

Important Notes

  • • Ensure documentation includes AED failure details.
Ancillary Codes

Additional codes that may be used with this diagnosis

R56.9

Unspecified convulsions

Use only if seizure etiology is unknown or not confirmed as epilepsy.

Z79.811

Long term (current) use of antiepileptic drugs

Use to indicate ongoing AED therapy.

Frequently Asked Questions

What is the ICD-10 code for complex partial seizures?

The ICD-10 code for complex partial seizures not intractable is G40.209, and for intractable complex partial seizures, it is G40.219.

How do you document complex partial seizures?

Document the seizure type, intractability status, EEG findings, and AED trials to ensure accurate coding and billing.

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