Deep phlebothrombosis in pregnancy, unspecified trimester

This code signifies the presence of a deep vein thrombosis (DVT) occurring during a pregnancy, without specifying the particular trimester. It indicates the formation of a blood clot within a deep vein, typically in the legs or pelvis, in a pregnant patient.

Use this code when documentation confirms a diagnosis of deep phlebothrombosis in a pregnant patient, and the medical record does not specify the trimester of pregnancy. This is appropriate when the DVT is a complication of the pregnancy itself.

• Always attempt to clarify the trimester of pregnancy from the documentation to use a more specific code if available.
• Do not use this code if the DVT is clearly unrelated to the pregnancy or if the patient is in the postpartum period.
• Sequence this code as a secondary diagnosis when the primary reason for the encounter is related to the management of the DVT.