Obesity complicating pregnancy, unspecified trimester

This code signifies the presence of obesity in a pregnant patient, where the specific trimester of pregnancy is not documented. It indicates that the patient's pre-pregnancy or current Body Mass Index (BMI) meets the criteria for obesity, and this condition is considered a complication of the pregnancy.

This code is appropriate when a pregnant patient has a documented diagnosis of obesity, and the medical record does not specify which trimester the obesity is complicating. Documentation supporting its use includes a diagnosis of obesity (e.g., BMI ≥ 30 kg/m²) and a clear indication that the patient is pregnant, without further trimester specification.

• Always attempt to query for the specific trimester if not documented, as more specific codes (O99.211-O99.213) are available.
• This code should be sequenced as a secondary diagnosis, following the code for the obstetric condition (e.g., Z3A.xx for weeks of gestation).
• Do not use this code if the obesity is not considered a complication of the pregnancy; instead, use a code from the E66 category for obesity.