Deep phlebothrombosis in pregnancy, second trimester

This code signifies the presence of a deep vein thrombosis (DVT) occurring in a pregnant patient during her second trimester. This condition involves the formation of a blood clot within a deep vein, typically in the legs, and poses significant risks to both the mother and the fetus.

Apply this code when documentation explicitly states a diagnosis of deep phlebothrombosis in a pregnant patient who is currently in her second trimester. Supporting documentation should include diagnostic imaging (e.g., ultrasound with Doppler) confirming the DVT and a clear indication of the gestational period.

• Always confirm the specific trimester of pregnancy documented.
• Do not confuse with superficial thrombophlebitis; this code is for deep phlebothrombosis.
• Sequence this code as the principal diagnosis if the DVT is the primary reason for the encounter, or as a secondary diagnosis if it's a co-morbidity.