G70.8 — Other specified myoneural disorders
G70.8 is a non-billable header ICD-10-CM code for other specified myoneural disorders. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1 inherited from the categories above G70.8
These are not written on G70.8, but they bind it: a note on a category applies to every code beneath it. Billing G70.8 with anything listed here is a denial.
Other codes that can never be billed with G70.8
These codes carry an Excludes1 note pointing at G70.8. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading G70.8 alone.
- G73.1Lambert-Eaton syndrome in neoplastic disease
Risk adjustment
G70.8 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code history
G70.8 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Code to one of these instead G70.8
3 child codes. Green means billable.
Related codes at this level
Codes that share G70. If G70.8 is not quite right, the correct code is usually one of these.
Questions about G70.8
- Is G70.8 a billable ICD-10-CM code?
- No. G70.8 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does G70.8 sit in the tabular list?
- Diseases of the nervous system (G00-G99), in the block Diseases of myoneural junction and muscle (G70-G73).
- What cannot be coded together with G70.8?
- G70.8 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above G70.8 (G70) and apply to it just the same.