33 weeks gestation of pregnancy

This code indicates that a pregnancy has reached 33 completed weeks of gestation. It is used to specify the gestational age of the fetus at the time of an encounter. This information is crucial for monitoring fetal development and planning appropriate prenatal care.

This code is used for routine prenatal visits, antenatal screenings, or any encounter where the gestational age of the pregnancy needs to be documented. It is typically assigned as a secondary diagnosis to provide additional detail about the pregnancy's progression.

• Always assign this code in conjunction with a code from category O09 (Supervision of high-risk pregnancy) or Z3A (Gestational age).
• Ensure the gestational age is accurately determined from the medical record, usually based on the last menstrual period (LMP) or ultrasound.
• Do not use this code if the gestational age is unknown or if the pregnancy is no longer viable.