O21.9 is the ICD-10 code for Vomiting of pregnancy, unspecified. It is a four-character subcategory of O21 (Excessive vomiting in pregnancy), the most specific level in the WHO edition. It belongs to the block O20–O29 (Other maternal disorders predominantly related to pregnancy) in Chapter XV, Pregnancy, childbirth and the puerperium.
- Code type
- Subcategory (4 characters)
- Chapter
- XV · O00–O99
- Classification
- WHO ICD-10, 2019 version
O21.9 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
O21.9Uspesifiserte svangerskapsbrekninger
DO219Opkastninger i graviditeten UNS
O21.9Määrittämätön raskausoksentelu
O21.9Erbrechen während der Schwangerschaft, nicht näher bezeichnet
O21.9Vomissements de la grossesse, sans précision
O21.9zwangerschapsbraken, niet-gespecificeerd
O21.9Vomiting of pregnancy, unspecified
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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