- Intractable vomiting that develops in early pregnancy and persists. This can lead to dehydration and weight loss.
- Severe, intractable vomiting during pregnancy (usually the first trimester) accompanied by dehydration, weight loss, and electrolyte imbalances.
643 Excessive vomiting in pregnancy 
643.0 Mild hyperemesis gravidarum 
643.00 Mild hyperemesis gravidarum, unspecified as to episode of care or not applicable convert 643.00 to ICD-10-CM- 643.01 Mild hyperemesis gravidarum, delivered, with or without mention of antepartum condition convert 643.01 to ICD-10-CM
643.03 Mild hyperemesis gravidarum, antepartum condition or complication convert 643.03 to ICD-10-CM- 643.1 Hyperemesis gravidarum with metabolic disturbance
- 643.10 Hyperemesis gravidarum with metabolic disturbance, unspecified as to episode of care or not applicable convert 643.10 to ICD-10-CM
- 643.11 Hyperemesis gravidarum with metabolic disturbance, delivered, with or without mention of antepartum condition convert 643.11 to ICD-10-CM
- 643.13 Hyperemesis gravidarum with metabolic disturbance, antepartum condition or complication convert 643.13 to ICD-10-CM
- 643.2 Late vomiting of pregnancy
- 643.20 Late vomiting of pregnancy, unspecified as to episode of care or not applicable convert 643.20 to ICD-10-CM
- 643.21 Late vomiting of pregnancy, delivered, with or without mention of antepartum condition convert 643.21 to ICD-10-CM
- 643.23 Late vomiting of pregnancy, antepartum condition or complication convert 643.23 to ICD-10-CM
- 643.8 Other vomiting complicating pregnancy
- 643.80 Other vomiting complicating pregnancy, unspecified as to episode of care or not applicable convert 643.80 to ICD-10-CM
- 643.81 Other vomiting complicating pregnancy, delivered, with or without mention of antepartum condition convert 643.81 to ICD-10-CM
- 643.83 Other vomiting complicating pregnancy, antepartum condition or complication convert 643.83 to ICD-10-CM
- 643.9 Unspecified vomiting of pregnancy
643.90 Unspecified vomiting of pregnancy, unspecified as to episode of care or not applicable convert 643.90 to ICD-10-CM- 643.91 Unspecified vomiting of pregnancy, delivered, with or without mention of antepartum condition convert 643.91 to ICD-10-CM
- 643.93 Unspecified vomiting of pregnancy, antepartum condition or complication convert 643.93 to ICD-10-CM
