| Immunoglobulin A (IgA), quantitative | 
| Immunoglobulin A cardiolipin antibodies test | 
| Immunoglobulin A gliadin antibodies test | 
| Immunoglobulin E (IgE) antibody test, drug effects on | 
| Immunoglobulin E antibody test, latex-specific | 
| Immunoglobulin E antibody test, single allergen | 
| Immunoglobulin G, CSF | 
| Immunoglobulin G, quantitative | 
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| Immunoglobulin G cardiolipin antibodies test | 
| Immunoglobulin G gliadin antibodies test | 
| Immunoglobulin G syphilis antibody, prenatal | 
| Immunoglobulin M, quantitative | 
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| Immunoglobulin M cardiolipin antibodies test | 
| Immunohematology tests | 
| Immunologic Tests for Immune Dysfunction and Related Disorders of the Immune Systems | 
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| Impetigo | 
| Implantable monitoring | 
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