21 weeks gestation of pregnancy

This code signifies a pregnancy that has reached precisely 21 completed weeks of gestation. It is used to track the progression of a pregnancy based on the estimated gestational age.

This code is appropriate for documenting the gestational age in obstetric records, particularly during prenatal visits or when reporting services related to a pregnancy at this specific stage. It is often used in conjunction with codes for the current pregnancy status.

• Always confirm gestational age from physician documentation, typically based on the last menstrual period (LMP) or ultrasound.
• This code is typically a secondary diagnosis, accompanying a primary code indicating the reason for the encounter (e.g., routine prenatal care).
• Ensure consistency with other documentation regarding the estimated date of delivery (EDD).