G70 — Myasthenia gravis and other myoneural disorders
Is G70 billable?
No — G70 is a non-billable header code. G70 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 8 billable codes beneath G70.
Billable codes under this header
- G70.1Toxic myoneural disorders
- G70.2Congenital and developmental myasthenia
- G70.9Myoneural disorder, unspecified
- G70.00Myasthenia gravis without (acute) exacerbation
- G70.01Myasthenia gravis with (acute) exacerbation
- G70.80Lambert-Eaton syndrome, unspecified
- G70.81Lambert-Eaton syndrome in disease classified elsewhere
- G70.89Other specified myoneural disorders
G70 at a glance
| Code | G70 |
|---|---|
| Description | Myasthenia gravis and other myoneural disorders |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with G70 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from Chapter 6
The conditions below are not part of G70, but a patient may have both at the same time. When documentation supports it, G70 and the excluded code may both be reported.
- 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)
What codes fall under G70? (5)
How long has G70 existed?
G70 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with G70?
ICD-10-CM declares these codes mutually exclusive with G70 — exactly one of each pair can be correct for a given encounter.