KA22.2
category
Post-term newborn
Definition
Maternal characteristics leading to post-term pregnancies include oligohydramnios, a history of decreased fetal movements, a low estriol and abnormalities in fetal heart rate patterns The etiology of post-term pregnancy includes hypoplasia or hyperplasia of the adrenal gland, placental sulfatase defiency and a poorly functioning placenta. There is an increased incidence of calcifications in the placenta. 25% of post-date pregnancies will develop into the Post Maturity Syndrome (PMS). There is an increased incidence of cerebral palsy infants who are post-term.
Coding note
When both birth weight and gestational age are available, priority of assignment should be given to birth weight.
Exclusions
- Postmaturity syndrome
(KA22.3)
Also indexed as
Ballantyne-Runge syndromePost-term newbornPostmaturity NOShypermaturity of newbornpost-term infantpost-term newborn, not heavy for gestational agepostdate newborn