What is the ICD-10 code for absence seizures?

The ICD-10 code for absence seizures not intractable and without status epilepticus is G40.A09. This code is used when EEG confirms 3 Hz spike-wave discharges.

How are absence seizures documented?

Document absence seizures by noting the clinical presentation, EEG findings (3 Hz spike-wave), and any associated conditions like status epilepticus.

ICD-10 Coding for Absence Seizure(G40.A09, G40.409, G40.3)

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Learn about ICD-10 coding for absence seizures, including G40.A09, documentation requirements, and common pitfalls.

Also known as:

Petit Mal SeizureStaring Spells

Related ICD-10 Code Ranges

Complete code families applicable to Absence Seizure

G00-G99Primary Range

Diseases of the nervous system

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
G40.A09	Absence epileptic syndrome, not intractable, without status epilepticus	Use when absence seizures are confirmed by EEG and are not intractable or associated with status epilepticus.	EEG showing 3 Hz spike-wave discharges Clinical presentation of staring spells
G40.409	Other generalized epilepsy and epileptic syndromes, with status epilepticus	Use when absence seizures are associated with status epilepticus.	EEG showing prolonged 3 Hz activity Clinical documentation of status epilepticus

Primary ICD-10-CM Codes

Absence epileptic syndrome, not intractable, without status epilepticus

G40.A09Billable

Other generalized epilepsy and epileptic syndromes, not intractable, without status epilepticus

G40.409Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Generalized idiopathic epilepsy, not intractable, without status epilepticusG40.309

Use when seizures are generalized but not specifically absence type.

Absence epileptic syndrome, not intractable, without status epilepticusG40

Use when status epilepticus is not present.

Documentation & Coding Risks

Avoid these common issues when documenting Absence Seizure.

Failure to document EEG findings

Impact

Clinical: Inaccurate diagnosis, Regulatory: Non-compliance with coding standards, Financial: Potential for denied claims

Mitigation

Ensure EEG results are included in documentation, Train staff on importance of detailed seizure documentation

Using unspecified codes like G40.909 when specific absence seizures are documented

Impact

Reimbursement: May lead to lower reimbursement rates, Compliance: Non-compliance with coding standards, Data Quality: Decreased accuracy in health records

Mitigation

Ensure EEG and clinical findings are documented to use specific codes like G40.A09.

Use of unspecified codes

Impact

Using codes like G40.909 when specific details are available

Mitigation

Ensure detailed documentation of seizure type and EEG findings

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with G40.A09.

Primary Code

G40.A09

Absence epileptic syndrome, not intractable, without status epilepticus

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ICD-10 codes7

Coding risks3

FAQs2

ICD-10 Coding for Absence Seizure(G40.A09, G40.409, G40.3)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for absence seizures?

How are absence seizures documented?

Related condition guides