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O21.1

Billable

Hyperemesis gravidarum with metabolic disturbance

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Severe nausea and vomiting during pregnancy that causes dehydration, electrolyte imbalances, or other metabolic problems requiring treatment.

Coding Tips

  • •Document specific metabolic disturbances (hypokalemia, hyponatremia, etc.) in addition to this code
  • •This code indicates more severe hyperemesis requiring intervention compared to O21.0

Code Hierarchy

└O21Excessive vomiting in pregnancy└O21.1Hyperemesis gravidarum with metabolic disturbance
└O21.1Hyperemesis gravidarum with metabolic disturbance

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