15 weeks gestation of pregnancy

This code indicates a pregnancy that has reached precisely 15 completed weeks of gestation. It is used to specify the gestational age of the fetus, which is crucial for monitoring fetal development, scheduling prenatal care, and identifying potential risks or complications associated with specific stages of pregnancy.

This code is appropriate for documenting the gestational age during routine prenatal visits, particularly when the 15-week mark is reached or confirmed. It is also used in conjunction with codes for maternal conditions or fetal diagnoses to provide a comprehensive picture of the pregnancy at this specific stage.

• Always use in conjunction with a code from category O09 (Supervision of high-risk pregnancy) or Z3A (Gestational age) as a secondary diagnosis.
• Ensure the gestational age is accurately determined and documented by the provider, typically based on the last menstrual period (LMP) or ultrasound.
• Do not use if the gestational age is unknown or if the pregnancy has progressed beyond 15 weeks.