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Atypical X Scid Cn381375

Published: July 22, 2026Updated: August 20, 2026

A severe immunodeficiency affecting males due to X-linked genetics. Causes life-threatening infections. Treatment may include bone marrow transplant.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 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

!

Recurrent severe infections

Generalized symptoms

(immunologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Failure to thrive in infancy

(immunologic)

Persistent lymphopenia

(hematologic)

Chronic skin rash with opportunistic infections

(integumentary)

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

Hematopoietic Stem Cell Transplantation

Curative approach involving transplantation of healthy donor stem cells to reconstitute the immune system. HSCT can restore immune function and provide long-term survival when performed early in life.

surgical
2

Pharmacological management with first-line agents

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

medication
3

Enzyme Replacement Therapy

Intravenous administration of recombinant adenosine deaminase to bypass the enzymatic defect. ERT can partially restore immune function and serve as a bridge to definitive HSCT.

medication

Additional treatment options

Gene Therapy

Experimental treatment involving collection of patient's own cells, insertion of functional gene copies, and reinfusion. Gene therapy offers potential cure by correcting the underlying genetic defect.

procedure

Infection Surveillance and Management

Vigorous monitoring for infections with prompt initiation of antimicrobial therapy when indicated. Blood tests track immune reconstitution progress post-treatment.

monitoring

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 Atypical X Scid Cn381375?

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

general

Sources and references

Authoritative medical sources used to create this content.

1

Chinen J, Buckley RH, Puck JM. Practice guidelines for management of severe combined immunodeficiency. J Clin Immunol. 2022.

guideline2022
2

Haddad E, Logan BR, Griffith LM. Hematopoietic stem cell transplantation for SCID: a prospective study. Blood. 2020.

clinical_trial2020
3

Sponzilli I, Notarangelo LD. Molecular pathogenesis of atypical forms of SCID. Immunol Allergy Clin North Am. 2019.

review2019
4

Zhang C, Liu J, Chen Z. Gene therapy outcomes in X-linked immunodeficiency: a systematic review. Mol Ther. 2023.

meta_analysis2023

Medication Comparisons

Compare medications used to treat Atypical X Scid Cn381375. 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 20, 2026. · Read our editorial policy