G70 – Myasthenia gravis and other myoneural disorders
ICD-10-CM 2027 diagnosis code · Diseases of myoneural junction and muscle
ICD-10-CM code
G70
- Code
G70(claims format:G70)- Description
- Myasthenia gravis and other myoneural disorders
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 6. Diseases of the nervous system (G00-G99)
- Block
- G70-G73 Diseases of myoneural junction and muscle
Billable codes under G70
G70 is a header code and cannot be used on claims. Choose the most specific code:
- G70.0 – Myasthenia gravisHeader (more codes below)
- G70.1 – Toxic myoneural disordersBillable
- G70.2 – Congenital and developmental myastheniaBillable
- G70.8 – Other specified myoneural disordersHeader (more codes below)
- G70.9 – Myoneural disorder, unspecifiedBillable
Notes for G70
Frequently asked questions
What is ICD-10 code G70?
G70 is the ICD-10-CM code for myasthenia gravis and other myoneural disorders, in the block G70-G73 (Diseases of myoneural junction and muscle).
Is G70 a billable code?
No. G70 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.