In Medicine is short for intraventricular communication, which is a heart abnormality. CIV is also the internationally accepted abbreviation for Ivory Coast, the African country (by name and English : Ivory Coast or in French Cote d'Ivoire).
CIV abbreviation for intraventricular communication . Perforation that occurs at the height of the ventricles and occurs at birth, but can also occur after heart attack or surgery.