Is ICD-10-CM code G70 billable?

No, G70 (Myasthenia gravis and other myoneural disorders) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code G70 belong to?

G70 belongs to Chapter 6 of the ICD-10-CM tabular list: G00–G99 (Diseases of the Nervous System).

G70Non-billable

Myasthenia gravis and other myoneural disorders

Diseases of the Nervous System·Diseases of myoneural junction and muscle (G70-G73)·category·FY 2026

Use a more specific code (3 billable, 2 non-billable)

G70.0Myasthenia gravishas subcodes G70.1Toxic myoneural disorders G70.2Congenital and developmental myasthenia G70.8Other specified myoneural disordershas subcodes G70.9Myoneural disorder, unspecified

CH6 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)

certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
injury, poisoning and certain other consequences of external causes (S00-T88)
neoplasms (C00-D49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Instructional Notes

Excludes1(Not coded here. Use a different code.)

botulism (A05.1, A48.51-A48.52)
transient neonatal myasthenia gravis (P94.0)

Clinical Hierarchy

BillableHas subcodes

CH6Diseases of the nervous system (G00-G99)

G70-G73Diseases of myoneural junction and muscle (G70-G73)

G70Myasthenia gravis and other myoneural disordersNot billable

G70.0Myasthenia gravisSubcodes

G70.1Toxic myoneural disordersBillable

G70.2Congenital and developmental myastheniaBillable

G70.8Other specified myoneural disordersSubcodes

G70.9Myoneural disorder, unspecifiedBillable

MS-DRG Classification

2026

No direct MS-DRG triggers identified.