Immunoglobulin A Vasculitis C0034152
An autoimmune condition causing inflammation of small blood vessels, often following an upper respiratory infection. It most commonly affects children and typically involves a purpuric rash on the legs. Most cases resolve on their own, though some require anti-inflammatory medications.
Key facts at a glance
- ICD-10
- D89.9
- ICD-11
- 3A00.0
- Body system
- immunologic
- Severity
- moderate
- Chronic
- false
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Arthralgia
(immunologic)Generalized symptoms
(immunologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Varies
Abdominal pain
(immunologic)Renal involvement (IgA nephropathy)
(immunologic)Palpable purpura
(immunologic)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
Clinical observation and laboratory monitoring
For mild IgA vasculitis, watchful waiting with regular assessment of skin lesions, joint involvement, and renal function through urine and blood tests.
Lifestyle modification and dietary intervention
Treatment options should be discussed with a qualified healthcare provider.
Corticosteroid therapy
Systemic corticosteroids to reduce inflammation in moderate to severe cases with significant skin, joint, or renal involvement.
Additional treatment options
Rest and elevation of affected limbs
Encourage rest during acute flare-ups with elevation of extremities to reduce edema and promote healing of skin manifestations.
lifestyleSkin biopsy for histopathology
Diagnostic biopsy of purpuric lesions to confirm IgA deposition in vessel walls, aiding definitive diagnosis.
procedureAnti-inflammatory dietary modifications
Emphasize fruits, vegetables, and omega-3 fatty acids while reducing processed foods to support immune regulation.
dietaryMedication Comparisons
Compare medications used to treat Immunoglobulin A Vasculitis C0034152. 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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy