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This is a shortened version of the eleventh chapter of the ICD-9: Complications of Pregnancy, Childbirth, and the Puerperium. It covers ICD codes 630 to 679. The full chapter can be found on pages 355 to 378 of Volume 1, which contains all (sub)categories of the ICD-9. Volume 2 is an alphabetical index of Volume 1.
Abortion is the termination of a pregnancy by removal or expulsion of an embryo or fetus. [nb 1] [2] An abortion that occurs without intervention is known as a miscarriage or "spontaneous abortion"; these occur in approximately 30% to 40% of all pregnancies.
Cervical weakness may cause miscarriage or preterm birth during the second and third trimesters. It has been estimated that cervical insufficiency complicates about 1% of pregnancies, and that it is a cause in about 8% of women with second trimester recurrent miscarriages. [2]
[5] Vanishing twin syndrome has been characterized as the loss of a twin before 12 weeks of gestation, or early during the first trimester where it is uncommon for twin pregnancy to have been identified. [6] According to Boklage, most twin pregnancies are ultimately born as singles, and vanished twins are a possible source of abnormal cells. [7]
Generally, diseases outlined within the ICD-10 codes O00-O09 within Chapter XV: Pregnancy, childbirth and the puerperium should be included in this category. v t
Triploid syndrome, also called triploidy, is a chromosomal disorder in which a fetus has three copies of every chromosome instead of the normal two. If this occurs in only some cells, it is called mosaic triploidy and is less severe.
A pregnancy in a rudimentary horn refers to a rare and life-threatening condition that occurs when a fertilized egg implants inside the small rudimentary horn of a unicornuate uterus, which is a type of congenital uterine abnormality caused by the incomplete development of one of the Müllerian ducts. This type of ectopic pregnancy is often ...
Retained products of conception is where products of conception remain in the uterus after childbirth, medical abortion or miscarriage (also known as spontaneous abortion). [1] Miscarriage with retained products of conception is termed delayed when no or very little products of conception have been passed, and incomplete when some products have ...