ICD-10 G70
Non-Billable HeaderMyasthenia gravis and other myoneural disorders
About ICD-10-CM G70
ICD-10-CM code G70 represents Myasthenia gravis and other myoneural disorders. This is a non-billable header code in the Nervous System chapter (block G70). The 2026 edition of ICD-10-CM G70 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Type 1 Excludes
Pure excludes, these codes can never be coded together with G70. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- botulism (A05.1, A48.51-A48.52)
- transient neonatal myasthenia gravis (P94.0)
Medicare LCD Coverage for G70
Local Coverage Determinations (LCDs) from CMS MACs that list G70 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing G70.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but G70 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with G70
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.
Codes Adjacent To G70
Other codes in section G70-G73 (Diseases of myoneural junction and muscle).
ICD-10 G70, Billing FAQ
Is ICD-10 code G70 billable? +
No, G70 is a non-billable header code. Use a more specific child code from block G70 when submitting claims.
What codes are Type 1 Excludes for G70? +
Type 1 Excludes (never code together with G70): botulism (A05.1, A48.51-A48.52); transient neonatal myasthenia gravis (P94.0)
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 2, 2026.
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