Antepartum hemorrhage w coag defect, unsp, second trimester

This code signifies bleeding from the uterus during the second trimester of pregnancy, specifically when a coagulation defect (e.g., thrombocytopenia, hemophilia, DIC) is identified as a contributing factor, but the specific type of coagulation defect is not documented. It indicates a serious obstetric complication requiring medical attention.

Apply this code when documentation explicitly states antepartum hemorrhage occurring between 14 weeks 0 days and 27 weeks 6 days gestation, and a coagulation defect is noted as present, but the specific defect is not specified. This typically occurs in cases where the bleeding is severe or persistent and a hematological workup reveals an underlying clotting issue.

• Ensure the documentation clearly specifies "second trimester" for the hemorrhage.
• Do not use if the specific coagulation defect is known; instead, code the specific defect (e.g., O46.012 for disseminated intravascular coagulation).
• Always sequence this code after the primary reason for the encounter if the hemorrhage is a complication of another condition.