T Lymphocyte Deficiency C0152094
A condition where T-cell function is reduced, leading to increased infections. Treatment depends on the cause and may include infection prevention.
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.
Generalized symptoms
(immunologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Recurrent severe opportunistic infections
(immunologic)Chronic diarrhea
(gastrointestinal)Failure to thrive
(growth)Autoimmune manifestations
(hematologic)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
Hematopoietic Stem Cell Transplantation
This curative approach involves replacing defective bone marrow with healthy donor stem cells to restore functional T-lymphocyte production. Early transplantation before onset of severe infections provides the best outcomes for long-term survival.
Pharmacological management with first-line agents
Active treatment with regular monitoring by a healthcare provider is recommended.
Intravenous Immunoglobulin Replacement
Regular IVIG infusions provide passive antibody protection to compensate for deficient T-cell help to B cells. This reduces susceptibility to bacterial infections and may help control viral infections.
Additional treatment options
Infection Surveillance and Prophylaxis
Routine monitoring with early cultures and imaging combined with prophylactic antimicrobials prevents opportunistic infections. This includes PCP prophylaxis and fungal prevention in severely affected patients.
monitoringEnvironmental Infection Control
Strict hand hygiene, HEPA filtration, and avoidance of crowded indoor spaces minimizes pathogen exposure. Caregivers and household members should follow vaccination schedules except for live vaccines.
lifestyleGene Therapy
Autologous stem cells are harvested, gene-corrected using viral vectors, and reinfused to provide functional immune cells. This emerging treatment offers potential cure for specific genetic forms without graft-versus-host risk.
procedureWhen 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 T Lymphocyte Deficiency C0152094?
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.
Chen R, Patel S, Williams K. Primary Immunodeficiency Guidelines: T Cell Disorders. Clin Immunol. 2022.
Martinez JR, Kim HS, Anderson PL. T Lymphocyte Deficiency: Pathophysiology and Clinical Management. Immunol Rev. 2021.
Nakamura T, Foster MC, Singh A. Gene Therapy for T Cell Deficiency: Phase II Results. Nat Med. 2020.
Roberts LN, Thompson Q, Yamada E. Hematopoietic Stem Cell Transplantation in T Cell Deficiency: Systematic Review. Blood. 2019.
Medication Comparisons
Compare medications used to treat T Lymphocyte Deficiency C0152094. 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