| Test Name (Click to sort by popular result) | COE Code |
| C-Peptide | CPEP |
| C-Reactive Protein | CRP |
| C-Reactive Protein, High Sensitivity | HSCRP |
| C1 Esterase Inhibitor, Antigen | C1ES |
| C1 Esterase Inhibitor, Functional | FC1EQ |
| C1q Complement, Antigen | C1Q |
| C1q Complement, Functional | ML MISC |
| C2 Complement, Functional | C2 |
| C3 Complement, Antigen | C3 |
| C3 Nephritic Factor | ML MISC |
| C3d Circulating Immune Complexes | ML MISC |
| C4 Complement, Antigen | C4 |
| C5 Complement, Antigen | C5CP |
| C6 Complement, Functional | C6P |
| C7 Complement, Functional | C7 |
| C8 Complement, Antigen | ML MISC |
| C8 Complement, Functional | ML MISC |
| C9 Complement, Functional | C9 |
| CA 125 | CA125 |
| CA 15-3 | CA15-3 |
| CA 19-9 | CA19-9 |
| CA 27.29 | CA2729 |
| CAH Pediatric Profile 4 | FCAH4 |
| CD11b / CD18 Adherence Glycoprotein | FLABEL |
| CD57 Panel | SENDOUT |
| CEBPA Mutation Detection | MLABEL |
| CHD (Coronary Heart Disease) Profile | CHD |
| Cadmium, Blood/Urine | CD-B/CD-U |
| Caffeine | CAF |
| Calcitonin | CLCT |
| Calcium, Ionized | ICAL |
| Calcium, Serum | CAL |
| Calcium, Urine | CALU/CALQ |
| Campylobacter Culture | CAMP |
| Canavan Disease Mutation | ML MISC |
| Candida Antibody Panel | ML MISC |
| Candida Antigen | ML MISC |
| Cannabinoid, Urine | UCANN/MSCANN/UTHCGL/THCG |
| Carbamazepine | CBZN |
| Carbamazepine Epoxide | CEPOX |
| Carbamazepine, Protein Free | FCBZN |
| Carbohydrate Deficient Transferrin | CDT |
| Carbon Dioxide, Total | CO2 |
| Carbon Monoxide, Blood | CO2B |
| Carbon Monoxide, Whole Blood, Adult (UM) | |
| Carbon Monoxide, Whole Blood, Pediatric (UM) | |
| Carcinoembryonic Antigen | CEA |
| Cardiolipin Antibody | CAB |
| Cardiolipin Antibody, IgA | ML MISC |
| Carnitine, Plasma | CARN/BCARNFT/BCARNC |
| Carnitine, Urine | CARNU |
| Carotene | CARO |
| Catecholamines, Plasma | PCAT |
| Catecholamines, Urine | UCAT |
| Catheter Tip, Aerobic Culture | CATH |
| Celiac Associated HLA-DQ Typing | ML MISC |
| Celiac Disease Genetic Assessment | CELPLUS |
| Cell Bound Platelet Autoantibody | CBPA |
| Cerebrospinal Fluid Cytology | CCSF |
| Cerebrospinal Fluid, AFB Culture | BAFB |
| Cerebrospinal Fluid, Aerobic Culture | CSFG |
| Cerebrospinal Fluid, Anaerobe Culture | ANNC |
| Cerebrospinal Fluid, Fungus Culture | FNG |
| Ceruloplasmin | CERULO |
| Cervical / Vaginal Cytology | |
| Chlamydia Serology | SCLAM |
| Chlamydia trachomatis Antigen, DFA | ML MISC |
| Chlamydia trachomatis Culture | CCLAM |
| Chlamydia trachomatis DNA by PCR, Urine | CHLUR |
| Chlamydia trachomatis DNA by PCR, Urogenital | PCRCHL |
| Chloramphenicol, Serum | ML MISC |
| Chlordiazepoxide, Serum | LIBRIUM |
| Chloride, Fluid | CHLORF |
| Chloride, Serum | CHLOR |
| Chloride, Sweat | SWEAT |
| Chloride, Urine | CHLORU/CHLORQ |
| Chlorpromazine, Serum | CHLORP |
| Cholesterol, Fluid | CHOLF |
| Cholesterol, Serum | CHOL |
| Chromium, Serum/Urine | CR-S/CR-U |
| Chromogranin A | CHROMOA |
| Chromosomal Microarray Analysis | CMAB1S |
| Chromosome Analysis, Amniotic Fluid | CGLABEL |
| Chromosome Analysis, Blood, Constitutional | CGLABEL |
| Chromosome Analysis, Blood, Malignancy | CGLABEL |
| Chromosome Analysis, Blood, Prophase Bands | CGLABEL |
| Chromosome Analysis, Bone Marrow | CGLABEL |
| Chromosome Analysis, FISH Oncology Probes | CGLABEL |
| Chromosome Analysis, FISH for CLL | FCLL |
| Chromosome Analysis, FISH for Microdeletion Syndromes | CGLABEL |
| Chromosome Analysis, FISH for Microduplication of 15q11-q13 | CGLABEL |
| Chromosome Analysis, Tissue | CGLABEL |
| Chromosome Breakage Analysis | FA |
| Citrate, Urine | CITRATE |
| Clomipramine and Norclomipramine | CLOM |
| Clonazepam | CLONAZ |
| Clonidine | SL MISC |
| Clostridium difficile Antigen by EIA | CDIFF |
| Clozapine | CLOZ |
| Coagulation Anti-IIa Inhibitor Assay | ARGAT |
| Coagulation Anti-Xa, Arixtra | ARIXTRA |
| Coagulation Anti-Xa, LMWH | XA INHIB |
| Coagulation Anti-Xa, UFH | HEPARIN |
| Coagulation Factor II Assay | F2 |
| Coagulation Factor IX Assay | F9 |
| Coagulation Factor IX Inhibitor Assay | INHIB9 |
| Coagulation Factor V Assay | F5 |
| Coagulation Factor VII Antigen | ML MISC |
| Coagulation Factor VII Assay | F7 |
| Coagulation Factor VIII Assay | F8 |
| Coagulation Factor VIII Inhibitor Assay | INHIB8 |
| Coagulation Factor X Antigen | ML MISC |
| Coagulation Factor X Assay | F10 |
| Coagulation Factor XI Assay | F11 |
| Coagulation Factor XII Assay | F12 |
| Coagulation Factor XIII Screen | F13 |
| Coagulation Specific Factor Inhibitor Assay | II INHIB/V INHIB/VII INHIB/X INHIB/XI INHIB/XII INHIB |
| Cocaine, Blood | ML MISC |
| Cocaine, Urine | UCOC/MSCOC/UCOCGL/COCG |
| Coccidioides Antibody | ML MISC |
| Coccidioides Antibody (MDCH) | SCOCCI/CCOCCI |
| Cold Agglutinins | COLD |
| Collagen Type II Antibody | CT2 |
| Colonic Brushings Cytology | |
| Complement, Total Alternative Pathway (AH50) Function | AH50 |
| Complement, Total Hemolytic (CH50) | CH50 |
| Comprehensive Metabolic Panel | COMP |
| Conjunctiva, Aerobic Culture | WDTSG |
| Conjunctiva, Fungus Culture | FNG |
| Connexin 26 (GJB2) Mutation Analysis | CX26SS |
| Copper, Erythrocytes | SL MISC |
| Copper, Liver Tissue | CU-T |
| Copper, Serum | COPP |
| Copper, Urine | COPPU |
| Cord Blood, Mother of Infant has Antibodies | CB |
| Cord Blood, Rh Immune Globulin Evaluation | RHI |
| Cortisol, Serum | CORT |
| Cortisol, Urine | UFC |
| Cotinine, Urine | COT |
| Coxsackie A Antibody Panel | COXA/ML MISC |
| Coxsackie B Antibody Panel | COXB/ML MISC |
| Creatine Disorders Panel, Urine | ML MISC |
| Creatine Kinase Isoenzymes | ML MISC |
| Creatine Kinase, Total | CK |
| Creatine Kinase, Total and MB Isoenzyme | TCK |
| Creatinine Clearance | CRCL |
| Creatinine, Fluid | CREATF |
| Creatinine, Serum | CREAT |
| Creatinine, Urine | CREATU/CREATQ |
| Crossmatch, BMT | BMT XM |
| Crossmatch, Lymphocyte, Detailed | TTYPE |
| Crossmatch, Lymphocyte, Preliminary | TTYPE |
| Crossmatch, Red Blood Cells | XM, XMC, XMIAT |
| Cryoglobulin Evaluation | CRYO |
| Cryptococcus Antibody | ML MISC |
| Cryptococcus Antigen, CSF | CRAGC |
| Cryptococcus Antigen, Serum | CRAGS |
| Cryptosporidia Exam | OPC |
| Cryptosporidium Antigen, Stool | CRYPS |
| Cutaneous Immunofluorescence Antibodies, Serum | ML MISC |
| Cyanide, Blood | CYAN |
| Cyclic AMP, Urinary Excretion | CYCLIC |
| Cyclic Citrullinated Peptide (CCP) Antibody | CCP |
| Cyclosporine | CYCLO |
| Cystatin C, Serum | ML MISC |
| Cystic Fibrosis Carrier Screening | MLABEL |
| Cystic Fibrosis Diagnostic | CFDX |
| Cysticercus IgG Antibody by Western Blot | ML MISC |
| Cystine, Qualitative, Urine | CYST |
| Cystine, Quantitative, Plasma | LPREPS, SENDOUT |
| Cystinuria Profile, Quantitative | C-QN |
| Cytochemical Stains (Blood/Bone Marrow) | PA/PX/FE/SB/TRAP/LAPA/SE/NSE |
| Cytomegalovirus Antibody, IgG | CMVG |
| Cytomegalovirus Antibody, IgM | CMVM |
| Cytomegalovirus Antiviral Resistance | SENDOUT |
| Cytomegalovirus Culture | CMVCULT |
| Cytomegalovirus DNA by PCR, Quantitative | QCMV |