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643 Excessive vomiting in pregnancy

          [Do not use fourth digit for underlying cause of death]

643.0 Mild hyperemesis gravidarum

          Hyperemesis gravidarum, mild or unspecified, starting before the end of the
           22nd week

643.1 Hyperemesis gravidarum with metabolic disturbance

          Hyperemesis gravidarum, starting before the end of the 22nd, with metabolic
           disturbance, such as:
           carbohydrate depletion
           dehydration
           electrolyte imbalance

643.2 Late vomiting of pregnancy

          Excessive vomiting starting after 22 completed weeks of gestation

643.8 Other vomiting complicating pregnancy

          Vomiting due to organic disease or other cause, specified as complicating
           pregnancy, or as a reason for obstetric care during pregnancy
          Use additional code, if desired to identify cause

643.9 Unspecified vomiting of pregnancy

          Vomiting as a reason for care during pregnancy, length of gestation
           unspecified
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