T80.3 ABO incompatibility reaction due to transfusion of blood or blood products

Name of the Condition

• ABO incompatibility reaction due to transfusion of blood or blood products.

Summary

This condition describes an adverse immune reaction that occurs when blood or blood products with incompatible ABO antigens are transfused. It is a serious complication that can lead to hemolysis, organ damage, and other systemic effects. 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
• Nausea, vomiting, or abdominal pain
• Jaundice or pallor
• In severe cases, shock or acute kidney injury

Diagnosis

Diagnosis is based on clinical presentation, transfusion history, and laboratory findings. Key tests include direct antiglobulin testing (Coombs test) to detect antibody-coated red blood cells, repeat ABO typing and crossmatching, and measurement of free hemoglobin or bilirubin levels. Urinalysis may show hemoglobinuria, and imaging or renal function tests may be used if organ damage is suspected.

Treatment Options

Treatment focuses on stopping the transfusion immediately, supporting vital signs, and managing hemolysis. Interventions may include intravenous fluids, diuretics to prevent kidney injury, and monitoring for complications like disseminated intravascular coagulation (DIC). In severe cases, dialysis or other organ support may be required.

Prognosis and Follow-Up

Prognosis depends on the severity of the reaction and timeliness of treatment. Mild reactions may resolve with supportive care, while severe cases can lead to life-threatening complications. Follow-up includes monitoring renal function, hemoglobin levels, and ensuring no further incompatible transfusions occur. Long-term outcomes may involve managing chronic kidney disease if present.

Complications

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

Lifestyle & Prevention

Prevention relies on strict adherence to blood typing and crossmatching protocols before transfusion. Healthcare providers should verify patient identity and blood product compatibility at every step. Patients with known antibodies or rare blood types may require specialized blood products or pre-transfusion testing.

When to Seek Professional Help

Seek immediate medical attention if symptoms of a transfusion reaction occur, such as fever, chills, pain, or respiratory distress. Delayed reactions (e.g., hemolysis days after transfusion) also require prompt evaluation. Contact healthcare providers if urine darkens or jaundice develops after a transfusion.

Tips for Medical Coders

Document the specific blood or blood product involved, the timing of the reaction, and any confirmatory tests (e.g., Coombs test). Note whether the reaction was acute (during or within 24 hours) or delayed. Include details on management, such as transfusion cessation or supportive care, to support code assignment. Ensure ABO incompatibility is clearly linked to the transfusion event in the record.