Pregnancy, Ectopic

**Definition:** A potentially life-threatening condition in which EMBRYO IMPLANTATION occurs outside the cavity of the UTERUS. Most ectopic pregnancies (>96%) occur in the FALLOPIAN TUBES, known as TUBAL PREGNANCY. They can be in other locations, such as UTERINE CERVIX; OVARY; and abdominal cavity (PREGNANCY, ABDOMINAL).

**Tree numbers:** - C12.050.703.733

**Synonyms:** - Ectopic Pregnancy - Pregnancy, Extrauterine