ICD-10-CM › O00-O9A › O20-O29 › O21 Excessive vomiting in pregnancy › O21.1
Hyperemesis gravidarum with metabolic disturbance
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Hyperemesis gravidarum with metabolic disturbance
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from the O20-O29 section Other maternal disorders predominantly related to pregnancy (O20-O29)
Excludes2 - not included here
- maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
- maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Nausea > gravidarum
- Disturbance > electrolyte
- Pregnancy > complicated by > hyperemesis
- Abnormal, abnormality, abnormalities > electrolyte
- Pregnancy > complicated by > vomiting > hyperemesis gravidarum
- Hyperemesis > gravidarum > severe
- Hyperemesis > gravidarum > with > dehydration
- Hyperemesis > gravidarum > with > electrolyte imbalance
- Hyperemesis > gravidarum > with > metabolic disturbance
- Imbalance > electrolyte > due to hyperemesis gravidarum
- Hyperemesis > gravidarum > with > carbohydrate depletion
Codes in the same group
| Code | Description | Status |
|---|---|---|
| O21.0 | Mild hyperemesis gravidarum | Valid |
| O21.2 | Late vomiting of pregnancy | Valid |
| O21.8 | Other vomiting complicating pregnancy | Valid |
| O21.9 | Vomiting of pregnancy, unspecified | Valid |