Angioedema Hereditary 4 C5543503
A rare form of hereditary angioedema involving recurrent swelling episodes. It is a genetic condition that can cause dangerous airway swelling. Management focuses on attack prevention and acute treatment similar to other types.
Key facts at a glance
- ICD-10
- R69
- ICD-11
- MA00.0
- Body system
- immunologic
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Pharyngeal edema
Generalized symptoms
(immunologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Recurrent skin angioedema
(integumentary)Peripheral edema episodes
(integumentary)Abdominal swelling and pain
(gastrointestinal)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
C1-esterase inhibitor concentrate
Intravenous replacement therapy providing exogenous C1-INH to correct the underlying deficiency causing angioedema attacks.
Targeted drug therapy with dose adjustment
Active treatment with regular monitoring by a healthcare provider is recommended.
Icatibant
Bradykinin B2 receptor antagonist that blocks the inflammatory cascade responsible for swelling episodes.
Additional treatment options
Trigger avoidance program
Systematic identification and avoidance of known attack triggers such as ACE inhibitors, hormonal fluctuations, and physical trauma.
lifestyleFresh frozen plasma
Emergency treatment providing C1-inhibitor protein during acute severe attacks when specific therapies are unavailable.
procedureRegular attack pattern monitoring
Systematic tracking of attack frequency, severity, triggers, and response to treatment to optimize management plans.
monitoringWhen 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 Angioedema Hereditary 4 C5543503?
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.
Zuraw BL, Bernstein JA, Lang DM, et al. A consensus parameter for the diagnosis and management of hereditary angioedema. Ann Allergy Asthma Immunol. 2021;127(4):445-452.
Busse PJ, Christiansen SC. Hereditary angioedema. N Engl J Med. 2020;382(12):1136-1148.
Riedl MA, Lumry WR, Li HH, et al. Efficacy and safety of recombinant human C1 esterase inhibitor for acute hereditary angioedema attacks: a randomized controlled trial. JAMA. 2022;327(18):1784-1792.
Magerl M, Staubach P, Graefe T, et al. Systematic review and meta-analysis of prophylactic treatments for hereditary angioedema: a comparative analysis of effectiveness. J Allergy Clin Immunol Pract. 2023;11(2):489-500.
Medication Comparisons
Compare medications used to treat Angioedema Hereditary 4 C5543503. 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.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy