Which code is used to report weeks of gestation?

The correct code for reporting weeks of gestation is Z38, which specifically relates to the outcome of delivery and is used to indicate a live born infant. While Z38 does not directly represent gestational age alone, it is used in the context of live births alongside the gestational period, often included in maternal and neonatal records.

Z67, on the other hand, refers to a situation regarding pregnancy and childbirth but does not specifically denote weeks of gestation. Z29 is utilized for encounters for other prophylactic measures concerning pregnancy and childbirth and does not specifically address gestational age. Z16 is associated with resistance to antimicrobials and is unrelated to pregnancy or gestational terms. Thus, while Z38 pertains to childbirth, it inherently considers gestational aspects in its broader context.