ABO incompatibility w acute hemolytic transfs react, init

This code signifies an immediate and severe immune response occurring when a patient receives a blood transfusion that is incompatible with their own ABO blood type. The patient's antibodies attack the transfused red blood cells, leading to their destruction (hemolysis). This reaction can manifest with symptoms such as fever, chills, back pain, and hypotension.

Apply this code when documenting an acute hemolytic transfusion reaction directly caused by ABO incompatibility, and it is the first time the patient is being treated for this specific event. This typically occurs shortly after or during the transfusion. It is crucial to use this code for the initial diagnostic workup and management of the acute reaction.

• Ensure documentation clearly states "ABO incompatibility" as the cause of the acute hemolytic reaction.
• Confirm this is the patient's first presentation or treatment for this specific transfusion reaction.
• Do not use for delayed hemolytic reactions or reactions due to non-ABO incompatibilities.