Complete placenta previa with hemorrhage, third trimester

This code signifies a condition where the placenta completely covers the internal cervical os, occurring during the third trimester of pregnancy, and is complicated by active bleeding. This complete placental obstruction of the birth canal poses significant risks to both mother and fetus.

Apply this code when documentation clearly indicates a complete placenta previa diagnosis in a pregnant patient who is in her third trimester, and there is explicit mention of associated hemorrhage. Supporting documentation would include ultrasound reports confirming complete previa and physician notes detailing vaginal bleeding.

• Ensure documentation specifies "complete" placenta previa, not partial or marginal.
• Verify the gestational age falls within the third trimester (28 weeks 0 days to delivery).
• Always sequence this code as the principal diagnosis when it is the reason for the encounter.