Abnormal Circulating Interleukin 12 Concentration C5937220
IL-12 is a pro-inflammatory cytokine important for immune response. Abnormal levels may occur with autoimmune diseases or infections. Management focuses on the underlying condition.
Key facts at a glance
- ICD-10
- D89.9
- ICD-11
- 3A00.0
- Body system
- immunologic
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Vasculitis
Inflammation of blood vessels causing pain, skin changes, and potential organ involvement due to dysregulated immune response.
Seek emergency care immediately for chest pain, shortness of breath, severe abdominal pain, or neurological changes.
Severe abdominal pain
Intense abdominal discomfort that may indicate significant intestinal inflammation or complications requiring prompt evaluation.
Seek emergency care immediately for sudden severe abdominal pain or pain accompanied by fever, vomiting, or blood.
Persistent fever
(constitutional)Recurrent or persistent low-grade fever often lasting several weeks, frequently accompanying underlying inflammatory or infectious processes.
Frequency: 70-85% of patients
Fatigue and malaise
(constitutional)Persistent tiredness and generalized feeling of unwellness that interferes with daily activities and does not improve with rest.
Frequency: 65-80% of patients
Chronic diarrhea
(gastrointestinal)Loose or watery stools persisting for more than 4 weeks, often due to intestinal inflammation or impaired immune regulation.
Frequency: 40-55% of patients
Skin rash
(dermatologic)Various skin eruptions including erythematous patches, papules, or plaques that may be itchy or painful.
Frequency: 35-50% of patients
Recurrent respiratory infections
(respiratory)Frequent episodes of bronchitis, pneumonia, or upper respiratory tract infections due to impaired cellular immunity.
Frequency: 20-35% of patients
Lymphadenopathy
(hematologic)Enlarged lymph nodes, typically in cervical or axillary regions, often resulting from persistent immune activation.
Frequency: 15-30% of patients
Headache
(neurologic)Persistent or recurrent headaches that may range from mild to moderate in intensity, often associated with systemic inflammation.
Frequency: 10-20% of patients
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
Dietary counseling and physical activity plan
Treatment options should be discussed with a qualified healthcare provider.
Regular cytokine monitoring
Periodic blood testing to track IL-12 levels and assess response to interventions. Monitoring helps guide treatment adjustments and identify progression.
Immunomodulatory therapy
Systemic medications that regulate immune function and reduce inflammatory responses associated with abnormal IL-12 levels.
Additional treatment options
Stress reduction techniques
Mindfulness practices, meditation, and relaxation exercises to reduce systemic inflammation and support immune homeostasis.
lifestyleAnti-inflammatory nutrition
Diet rich in omega-3 fatty acids, antioxidants, and whole foods while limiting processed items to support immune balance.
dietaryAcupuncture therapy
Traditional technique that may help modulate immune responses and reduce inflammation associated with cytokine imbalances.
complementaryWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Abnormal Circulating Interleukin 12 Concentration C5937220?
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.
World Health Organization. Guidelines on cytokines and chemokines in infectious diseases. Geneva: WHO; 2021.
American Academy of Allergy, Asthma and Immunology. Practice parameter for the diagnosis and management of primary immunodeficiency. J Allergy Clin Immunol. 2020;146(5):1051-1063.
Teng MW, Bowman EP, McElwee JJ, et al. IL-12 and related cytokines: function and regulatory implications in autoimmunity. Clin Immunol. 2019;207:10-20.
Liu C, Wang Y, Chu J, et al. Interleukin-12 polymorphisms and susceptibility to autoimmune diseases: a meta-analysis. Medicine (Baltimore). 2021;100(18):e25789.
Colombo MP, Trinchieri G. Interleukin-12 in anti-tumor immunity and immunotherapy. Cytokine Growth Factor Rev. 2002;13(2):155-168.
International Union of Immunological Societies. Classification of primary immunodeficiencies: IUIS PID Classification Committee. J Clin Immunol. 2022;42(5):1056-1080.
Cunninghame Graham DS, Vyse TJ. IL-12 and related cytokines in systemic lupus erythematosus. In: Tsokos GC, ed. Systemic Lupus Erythematosus. Philadelphia: Elsevier; 2020:87-102.
Janeway's Immunobiology. 9th ed. New York: Garland Science; 2016.
Medication Comparisons
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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