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Immunodeficiency 84 C5561940

Published: July 22, 2026Updated: August 25, 2026

A rare genetic immunodeficiency disorder that weakens the body's ability to fight infections. Treatment includes infection prevention strategies and immune support.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 25, 2026Editorial policy

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

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Recurrent sinopulmonary infections

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Severe eczema with secondary infection

Generalized symptoms

(immunologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Persistent oral candidiasis

(immunologic)

Frequent episodes of fever

(immunologic)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

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

1

Combination drug regimen with regular assessment

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
2

Immunoglobulin Replacement Therapy

Regular immunoglobulin replacement via intravenous or subcutaneous routes to compensate for deficient antibody production. This foundational treatment helps prevent bacterial and viral infections by providing passive immunity.

medication
3

Antibiotic Prophylaxis

Long-term antibiotic prophylaxis to prevent bacterial infections, particularly respiratory tract infections. Selection depends on common pathogens in the patient's geographic area and previous culture results.

medication

Additional treatment options

Infection Surveillance

Regular monitoring for early signs of infection with prompt diagnostic workup and treatment. Includes periodic imaging for pulmonary assessment and laboratory markers of inflammation.

monitoring

Environmental Controls

Modification of living and work environments to reduce infection exposure. Includes air quality improvements, avoidance of construction dust, mold mitigation, and strategic avoidance of high-risk settings during outbreaks.

lifestyle

Emergency Infection Protocol

Established protocol for rapid evaluation and treatment of fevers or infection signs, including patient education on when to seek emergency care. May include prophylactic antibiotics to have available for early intervention.

procedure

When 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.

Q

What is Immunodeficiency 84 C5561940?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Medication Comparisons

Compare medications used to treat Immunodeficiency 84 C5561940. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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 25, 2026. · Read our editorial policy