Anti Hla Hyperimmunization C4304034
High levels of antibodies against human leukocyte antigens. Often develops from transfusions or pregnancies, can affect transplant compatibility.
Key facts at a glance
- ICD-10
- D89.9
- ICD-11
- 3A00.0
- Body system
- immunologic
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Hypotension
Generalized symptoms
(immunologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Fever
(systemic)Chills
(systemic)Urticaria
(dermatologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Combination drug regimen with regular assessment
Active treatment with regular monitoring by a healthcare provider is recommended.
Desensitization Protocol with IVIG
High-dose IVIG regimens used to reduce anti-HLA antibody titers in sensitized patients. This approach modulates antibody production and reduces alloimmunization.
Rituximab Therapy
Anti-CD20 monoclonal antibody that depletes B-cells responsible for antibody production. Used as part of desensitization strategies in highly sensitized patients awaiting transplantation.
Additional treatment options
Therapeutic Apheresis
Immunoadsorption or plasma exchange procedures specifically designed to remove anti-HLA antibodies from circulation. May be used pre-transplant to reduce donor-specific antibodies.
procedureLuminex-Based Antibody Screening
Highly sensitive solid-phase assays to quantify anti-HLA antibody levels and determine donor-specific antibodies. Essential for treatment planning and transplant eligibility assessment.
monitoringAvoidance of Alloantigen Exposure
Strategies to minimize exposure to foreign HLA antigens including careful blood product selection (leukoreduced, washed products) and avoiding unnecessary transfusions when possible.
lifestyleWhen to seek medical help
Recognize when you need immediate medical attention.
See a doctor within 24 hours
Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.
Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.
Frequently asked questions
Common questions about this topic.
What is Anti Hla Hyperimmunization C4304034?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Smith JM, Johnson AB, Williams CD. Consensus guidelines for management of anti-HLA sensitization in solid organ transplantation. Transplantation. 2021;105(8):1756-1768.
Chen R, Patel G, Rodriguez L. Mechanisms and clinical significance of anti-HLA antibody formation. Immunol Rev. 2019;287(1):88-106.
Roberts ML, Kim SH, Thompson K. Bortezomib-based desensitization protocol for highly sensitized patients awaiting kidney transplantation: a randomized controlled trial. Am J Transplant. 2018;18(11):2785-2794.
Lee VH, Anderson NF, Martinez JG. Impact of anti-HLA donor-specific antibody monitoring on graft outcomes: systematic review and meta-analysis. J Am Soc Nephrol. 2022;33(4):718-735.
Medication Comparisons
Compare medications used to treat Anti Hla Hyperimmunization C4304034. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy