Suprvsn of preg with history of molar preg, second trimester

This code indicates ongoing obstetric care for a pregnant patient who has a documented history of a molar pregnancy, and is currently in her second trimester. It signifies that the pregnancy is being closely monitored due to the increased risk associated with a prior molar pregnancy.

Apply this code when a patient with a confirmed history of molar pregnancy presents for routine or problem-focused obstetric visits during the 14th through 27th weeks of gestation. Documentation should clearly state the history of molar pregnancy and the current gestational age.

• Always confirm the trimester based on the patient's gestational age.
• Do not use this code for a current molar pregnancy; use codes from category O01.
• Sequence this code as a primary diagnosis when the reason for the encounter is routine prenatal care with this specific risk factor.