ICD-10-CM > G00-G99 > G40-G47 > G43 > G43.A G43.A Cyclical vomiting Non-Billable/Non-Specific Type 1 Excludes cyclical vomiting syndrome unrelated to migraine (R11.15) Codes G43.A0Cyclical vomiting, in migraine, not intractableG43.A1Cyclical vomiting, in migraine, intractable