ICD-10-CM · Chapter 15 · O00–O9A
O21.0
Mild hyperemesis gravidarum
Pregnancy, childbirth and the puerperium
Quick facts
- Code
- O21.0
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 15 — Pregnancy, childbirth and the puerperium
- Category
- O21 — Excessive vomiting in pregnancy
- Specificity
- 4 characters
How coders use this code
ICD-10-CM O21.0 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of mild hyperemesis gravidarum. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in O21
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