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ICD-10 Coding for History of Migraine(G43.109, G43.909, Z86.6)

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Learn about ICD-10 codes Z86.601 and Z86.602 for documenting a history of migraines. Understand when to use these codes and their documentation requirements.

Also known as:
Migraine HistoryPast Migraine Episodes
Related ICD-10 Code Ranges

Complete code families applicable to History of Migraine

G00-G99Primary Range

Diseases of the nervous system

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Primary ICD-10-CM Codes
Migraine with aura, not intractable, without status migrainosus
G43.109Billable
Differential Codes

Alternative codes to consider when ruling out similar conditions

Migraine, unspecified, not intractableG43.909
Migraine with aura, not intractableG43.109

Documentation & Coding Risks

Avoid these common issues when documenting History of Migraine.

Not specifying aura presence in history

Impact

Clinical: May lead to inappropriate treatment decisions., Regulatory: Non-compliance with documentation standards., Financial: Potential for claim denials due to unspecified coding.

Mitigation

Always document whether aura was present in past migraines., Use specific codes for with/without aura.

Using Z86.6xx as a primary diagnosis

Impact

Reimbursement: May lead to claim denials if used as primary diagnosis., Compliance: Non-compliance with ICD-10 coding guidelines., Data Quality: Inaccurate representation of patient's current health status.

Mitigation

Always use Z86.6xx as a secondary code when documenting history.

Incorrect Primary Diagnosis

Impact

Using Z86.6xx as a primary diagnosis can trigger audits.

Mitigation

Ensure these codes are used as secondary diagnoses.

Frequently Asked Questions

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with G43.109.