G43.A

G43.A: Cyclical vomiting

Non-billable headerICD-10-CM

G43.A is a non-billable header ICD-10-CM code for cyclical vomiting. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

cyclical vomiting syndrome unrelated to migraine (R11.15)

Excludes1 inherited from the categories above G43.A

A category’s note binds every code beneath it.

Written on G43: Migraine

lower half migraine (G44.00)

Excludes2 inherited from the categories above G43.A

Not part of this code, but both may be coded when both are present.

Written on G43: Migraine

headache NOS (R51.9)
headache syndromes (G44.-)

Other codes that can never be billed with G43.A

Their own Excludes1 notes name this code, so the conflict is not listed above.

R11Nausea and vomiting
R11.15Cyclical vomiting syndrome unrelated to migraine

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead G43.A

2 child codes. Green means billable.