Obesity complicating pregnancy, second trimester

This code signifies a pregnancy that is complicated by the presence of obesity in the second trimester. It indicates that the patient's pre-pregnancy or current Body Mass Index (BMI) meets the criteria for obesity and that this condition is impacting the current pregnancy.

Apply this code when a pregnant patient in her second trimester has a documented diagnosis of obesity that is noted by the provider as complicating the pregnancy. Documentation should clearly link the obesity to the pregnancy, such as "obesity complicating pregnancy" or "morbidly obese, 2nd trimester, managed due to pregnancy risks."

• Always sequence this code after the primary obstetric code (e.g., O09.-, O10.-, O11.-, O12.-, O13.-, O14.-, O15.-, O16.-, O20.-, O21.-, O22.-, O23.-, O24.-, O25.-, O26.-, O28.-, O29.-, O30.-, O31.-, O32.-, O33.-, O34.-, O35.-, O36.-, O40.-, O41.-, O42.-, O43.-, O44.-, O45.-, O46.-, O47.-, O48.-).
• Do not use this code if the obesity is not documented as complicating the pregnancy; instead, use a code from the E66.- series for obesity.
• Ensure the trimester is accurately documented to select the correct O99.21- subcategory.