ICD-10 G43.821
Billable / SpecificMenstrual migraine, not intractable, with status migrainosus
About ICD-10-CM G43.821
ICD-10-CM code G43.821 represents Menstrual migraine, not intractable, with status migrainosus. This is a billable/specific code in the Nervous System chapter (block G43). The 2026 edition of ICD-10-CM G43.821 became effective on October 1, 2025.
Medicare LCD Coverage for G43.821
Local Coverage Determinations (LCDs) from CMS MACs that list G43.821 as a covered diagnosis.
Showing top 10 of 159 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing G43.821.
2 Cigna
5 Medicare
1 Aetna
CPT Codes Commonly Billed with G43.821
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Convert G43.821 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| G43.821 | 34642 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To G43.821
Other codes in section G40-G47 (Episodic and paroxysmal disorders).
ICD-10 G43.821, Billing FAQ
Is ICD-10 code G43.821 billable? +
Yes, G43.821 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What ICD-9 codes does G43.821 map to? +
Per CMS GEMs, G43.821 maps to ICD-9 codes: 34642. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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