T80.31 ABO incompatibility with hemolytic transfusion reaction

Name of the Condition

• ABO incompatibility with hemolytic transfusion reaction.

Summary

This condition describes an adverse immune reaction that occurs when blood or blood products with incompatible ABO antigens are transfused, leading to hemolysis (destruction of red blood cells). It is a serious complication that can cause systemic effects, including organ damage and hemodynamic instability. The reaction is driven by pre-existing antibodies in the recipient that target antigens on the transfused red blood cells.

Causes

ABO incompatibility reactions result from the transfusion of blood or blood products containing ABO antigens that do not match the recipient's blood type. This mismatch triggers an immune response, where the recipient's antibodies bind to the donor red blood cells, leading to their destruction (hemolysis). The reaction can occur with red blood cells, plasma, or platelets if ABO compatibility is not maintained.

Risk Factors

• Transfusion of blood products without proper ABO typing or crossmatching
• Emergency transfusions where typing may be delayed
• Human error in blood product labeling or administration
• Use of pooled plasma products with mixed ABO types
• Transfusion of platelets or plasma from donors with incompatible ABO antigens

Symptoms

• Fever, chills, or rigors
• Flank pain or back pain
• Hemoglobinuria (dark urine)
• Hypotension or tachycardia
• Dyspnea or respiratory distress
• Jaundice or pallor
• Nausea, vomiting, or abdominal pain

Diagnosis

Diagnosis involves clinical assessment of symptoms, laboratory testing to detect hemolysis (e.g., elevated bilirubin, decreased haptoglobin, hemoglobinuria), and confirmation of ABO incompatibility through blood typing and crossmatching. Direct antiglobulin testing (Coombs test) may be used to identify antibody-mediated hemolysis.

Treatment Options

Treatment focuses on stopping the transfusion immediately, managing hemodynamic instability (e.g., fluids, vasopressors), and addressing hemolysis (e.g., diuretics, renal support if needed). Additional measures may include monitoring for organ damage and providing supportive care.

Prognosis and Follow-Up

Prognosis depends on the severity of the reaction and promptness of treatment. Mild cases may resolve with supportive care, while severe reactions can lead to acute kidney injury, shock, or death. Follow-up includes monitoring for delayed complications and ensuring proper blood compatibility in future transfusions.

Complications

• Acute kidney injury or renal failure
• Disseminated intravascular coagulation (DIC)
• Shock or cardiovascular collapse
• Multi-organ dysfunction
• Death (in severe cases)

Lifestyle & Prevention

Prevention relies on strict adherence to blood typing, crossmatching, and verification protocols before transfusion. Patients with a history of transfusion reactions should have their blood type and antibody status documented for future care.

When to Seek Professional Help

Seek immediate medical attention if symptoms of a transfusion reaction occur, such as fever, chills, pain, or changes in urine color, during or after a blood transfusion.

Tips for Medical Coders

Document the presence of hemolysis and transfusion incompatibility to support code assignment. Ensure clinical notes specify the reaction type (e.g., hemolytic) and any associated complications. Code T80.31 is specific to ABO incompatibility with hemolytic transfusion reaction; verify documentation aligns with this diagnosis.