ABO incompatibility w acute hemolytic transfs react, sequela

This code signifies a long-term or residual effect stemming from an acute hemolytic transfusion reaction caused by ABO incompatibility. It indicates that the patient experienced an immediate, severe immune response due to receiving incompatible ABO blood, and is now presenting with a lasting complication directly attributable to that event.

Use this code when documenting a patient's current condition that is a direct consequence or late effect of a previously resolved acute hemolytic transfusion reaction due to ABO incompatibility. This applies to situations where the acute phase has passed, but the patient continues to experience related health issues.

• Assign this code only when the sequela is clearly documented as a direct result of the past ABO incompatibility transfusion reaction.
• Always code the specific nature of the sequela (e.g., chronic renal failure, organ damage) in addition to this sequela code.
• Do not use for the initial acute reaction; this code is exclusively for the long-term effects.