HELLP syndrome (HELLP), third trimester

This code signifies a severe variant of pre-eclampsia, characterized by Hemolysis, Elevated Liver enzymes, and Low Platelet count, occurring during the third trimester of pregnancy. HELLP syndrome is a life-threatening obstetric complication requiring urgent medical intervention.

Assign this code when documentation clearly indicates the presence of HELLP syndrome in a pregnant patient who is in her third trimester. Supporting documentation should include laboratory findings confirming hemolysis (e.g., elevated LDH, schistocytes), elevated liver enzymes (e.g., AST, ALT), and thrombocytopenia (low platelet count).

• Always confirm the trimester documented for HELLP syndrome; specific codes exist for other trimesters.
• Ensure all three components of HELLP (Hemolysis, Elevated Liver enzymes, Low Platelets) are explicitly stated or clearly implied by lab results in the medical record.
• Code any associated complications, such as acute renal failure or disseminated intravascular coagulation (DIC), in addition to the HELLP syndrome.