ICD Code O21.1

ICD code O21.1 is excessive vomiting during pregnancy that causes metabolic disturbances, such as dehydration or electrolyte imbalance.

1. Persistent and severe nausea and vomiting during pregnancy

2. Evidence of dehydration (e.g., dry mucous membranes, decreased skin turgor)

3. Significant weight loss (typically more than 5% of pre-pregnancy body weight)

4. Laboratory findings indicating metabolic disturbances such as ketonuria, electrolyte imbalance (e.g., hypokalemia, hyponatremia), or elevated hematocrit

5. Symptoms not attributable to other causes (e.g., gastrointestinal disorders, infections)

Relevant CPT codes that may be used to treat ICD code O21.1 include:

- 96365: Intravenous infusion, for therapy, prophylaxis, or diagnosis; initial, up to 1 hour

- 96366: Each additional hour (List separately in addition to code for primary procedure)

- 96360: Intravenous infusion, hydration; initial, 31 minutes to 1 hour

- 96361: Each additional hour (List separately in addition to code for primary procedure)

- 99213–99215: Office or other outpatient visit for the evaluation and management of an established patient

- 99221–99223: Initial hospital care, per day, for the evaluation and management of a patient

- 36415: Collection of venous blood by venipuncture

- 80048: Basic metabolic panel (calcium, total)

- 87086: Urine culture, bacterial; quantitative, colony count

These CPT codes are commonly associated with the management and treatment of ICD code O21.1.

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