| Test Name (Click to sort by popular result) | COE Code |
| IBD Serology | IBD7 |
| IBS Diagnostic | IBSDIA |
| IGH/BCL2 t(14;18) Translocation Detection | MLABEL |
| Ibuprofen | ML MISC |
| IgA Fibronectin Aggregates | ML MISC |
| Imipramine and Desipramine | IMPN |
| Immune Complex Assay, C1q Binding | ML MISC |
| Immunodeficiencies Profile, Acquired | I3S |
| Immunodeficiencies Profile, Primary | IMMS |
| Immunodeficiencies Profile, Rituximab | FLABEL |
| Immunoglobulin A Quantitation | IGA |
| Immunoglobulin A, Salivary | ML MISC |
| Immunoglobulin D Quantitation | IGDS |
| Immunoglobulin E Quantitation | IGE |
| Immunoglobulin Free Light Chains, Serum | IFLC |
| Immunoglobulin G Index | GIN |
| Immunoglobulin G Quantitation | IGG |
| Immunoglobulin G Subclass Quantitation | GSUB |
| Immunoglobulin G and Albumin, CSF | G ALB |
| Immunoglobulin M Quantitation | IGM |
| Immunoglobulin Quantitation | IGS |
| Immunoperoxidase Procedures | |
| Immunophenotypic Analysis, Leukemia / Lymphoma | LEUKS |
| Immunophenotypic Analysis, Plasma / Mast Cell | FLABEL |
| Immunophenotypic Analysis, T-Cell | DERMFS |
| Indican, Qualitative, Urine | SL MISC |
| Infectious Mononucleosis Heterophile Test | MONO |
| Infliximab / HACA | HACA |
| Influenza Virus Type A or B Antibody, IgG & IgM | SFLA, SFLB |
| Inhibin A and B, Tumor Marker | ML MISC |
| Inhibin B, Infertility | ML MISC |
| Inhibin, Total | ML MISC |
| Inhibitor Screen | MIX STUDY |
| Insulin | INS |
| Insulin Antibody | INAB |
| Insulin-Like Growth Factor (IGF-1) | SMC |
| Insulin-Like Growth Factor Binding Protein (IGFBP-3) | IGFBP3 |
| Insulin-Like Growth Factor Panel | GFP |
| Interferon Alpha | ML MISC |
| Interleukin 6 | ML MISC |
| Intrinsic Factor Blocking Antibody | IFBA |
| Iodine, Urine | ML MISC |
| Iohexol GFR | IOHEXOL |
| Iron Binding Capacity | TIBC |
| Iron, Liver Tissue | FE-T |
| Iron, Serum | IRON |
| Isohemagglutinin Screen, Anti-A and/or Anti-B | ISO |
| Isoniazid, Serum | SL MISC |
| Itraconazole | ITCON |