Rh incompatibility w delayed hemolytic transfs react, subs

This code signifies a delayed adverse reaction to a blood transfusion in a patient with Rh incompatibility. It indicates that the patient is experiencing hemolysis due to antibodies formed against Rh antigens from a previous transfusion, and they are currently receiving follow-up care for this condition.

Apply this code when documenting subsequent encounters for a patient who previously received a blood transfusion and is now presenting with signs and symptoms of a delayed hemolytic reaction, specifically attributed to Rh incompatibility. This includes ongoing monitoring, treatment, or evaluation of the reaction's resolution.

• Ensure documentation clearly states "Rh incompatibility" as the cause of the hemolytic reaction.
• Confirm the encounter is for follow-up care, not the initial diagnosis or acute phase.
• Always sequence this code after the primary reason for the encounter, if applicable.