28 weeks gestation of pregnancy

This code indicates that a patient is currently 28 weeks pregnant, as determined by the estimated gestational age. It signifies a specific point in the third trimester of pregnancy, often used for tracking fetal development and maternal health.

This code is used when documenting the gestational age of a pregnant patient at 28 weeks. It is frequently applied during routine prenatal visits, hospital admissions for pregnancy-related conditions, or when reporting services where gestational age is a critical factor for medical decision-making.

• Always confirm gestational age with physician documentation, typically based on ultrasound or last menstrual period (LMP).
• This code is a secondary diagnosis and should be reported in conjunction with a primary code indicating the reason for the encounter (e.g., routine prenatal care, complication of pregnancy).
• Do not use this code if the gestational age is different from exactly 28 weeks; select the appropriate Z3A.xx code.