| Test Name (Click to sort by popular result) | COE Code |
| B Cell (IGH) Gene Rearrangement | MLABEL |
| BCR/ABL1 Analysis, Quantitative | MLABEL |
| BCR/ABL1 Kinase Domain Mutation Detection | MLABEL |
| BK Virus DNA by PCR, Quantitative | VBK/VBKU/VBBK |
| BMT Anti-A/B Titration | IGM/IGG TR |
| BMT Engraftment Analysis, Post-BMT | MLABEL |
| BMT Engraftment Analysis, Pre-BMT, Donor | MLABEL |
| BMT Engraftment Analysis, Pre-BMT, Recipient | MLABEL |
| BRAF V600E Mutation Detection | MLABEL |
| BRCA Mutation Detection | SENDOUT |
| Baclofen, Serum | ML MISC |
| Bacterial Antigen Detection Panel | ML MISC |
| Barbiturate, Urine | UBARB/MSBARB/UBARBGL/BARBG |
| Bartonella Antibody, IgG & IgM | BART |
| Basic Metabolic Panel | BASIC |
| Bence Jones Protein Screen, Urine | BJS |
| Bence Jones Protein, Quantitation, Urine | BJQ |
| Benzodiazepine, Urine | UBENZ/MSBENZ/UBENZGL/BENZG |
| Benztropine (Cogentin), Serum | ML MISC |
| Beta 2 Glycoprotein 1 Antibody Panel | B2GP1 |
| Beta 2 Microglobulin, Serum | B2MIC |
| Beta 2 Microglobulin, Urine | ML MISC |
| Beta 2 Transferrin | B2TSF |
| Beta Galactosidase, Leukocytes | ML MISC |
| Beta Glucuronidase, CSF | BGCC |
| Beta Hydroxybutyrate, Serum | BHYD |
| Bicarbonate, Urine | UHCO3 |
| Bile Acids, Fractionated | SL MISC |
| Bile Acids, Total | ML MISC |
| Bilirubin, Fractionated | BILIFRAC |
| Bilirubin, Total | TBIL |
| Bilirubin, Total, Fluid | TBILF |
| Biotin | SL MISC |
| Biotinidase | BI |
| Bismuth, Serum/Urine | ML MISC/SL MISC |
| Blastomyces Antibody | ML MISC |
| Blastomyces Antibody (MDCH) | SBLASTO/CBLASTO |
| Bleeding Time | SBT |
| Blood Culture, AFB | AFBBLD |
| Blood Culture, Bacteria and Yeast | BLD/BLDAE/BLDAN/BLDOTH |
| Blood Culture, Fungus | FNGI |
| Blood Culture, Quantitative | PBLDI/BLDI |
| Blood Gases and pH, Arterial, Pediatric | |
| Blood Gases and pH, Capillary, Pediatric | PBGC |
| Blood Gases, Arterial, Adult | AGASA |
| Blood Gases, Cooximetry, Arterial, Pediatric | |
| Blood Gases, Cooximetry, Venous, Pediatric | |
| Blood Gases, Electrolytes, Adult | |
| Blood Gases, Electrolytes, Pediatric | |
| Blood Gases, Multi-channel Recordings, Pediatric | |
| Blood Gases, Venous, Adult | AGASV |
| Blood Gases, Venous, Pediatric | |
| Blood Slide, Pathologist Review | PATH REV D |
| Blood Survey, Complete Blood Count | CBCP/CBCPD |
| Blood Survey, Differential Count, Automated | CBCPD |
| Blood Survey, Differential Count, Manual | CBCPD |
| Blood Type, ABO and Rh | BT/NB BT |
| Blood Type, ABO and Rh, BMT | BMT BT |
| Blood Type, Cord Blood | CB |
| Blood Type, Father's Blood, Prenatal | OB FATHER |
| Blood Type, Rh Type only | RHA |
| Body Fluid Analysis | FC, FD |
| Body Fluid Analysis, CSF | CSF FC, CSF FD |
| Body Fluid Analysis, Synovial Fluid | SF |
| Body Fluid Analysis, Synovial Fluid Crystal Exam | CRYS |
| Body Fluid, AFB Culture | BAFB |
| Body Fluid, Aerobic Culture | BFG/SBFG/SBFBA/SBFI/PDF |
| Body Fluid, Anaerobe Culture | ANNC |
| Body Fluid, Fungus Culture | FNG |
| Body Fluid, Quantitation Culture | TQNT |
| Bone Marrow Aspirate/Biopsy | BM |
| Bone Marrow, AFB Culture | AFBBLD |
| Bone Marrow, Fungus Culture | FNGI |
| Bordetella pertussis / parapertussis DNA by PCR, Qualitative | PCRBP |
| Bordetella pertussis Antibody | FBPERT |
| Borrelia (Lyme Disease) Antibody by Western Blot | SENDOUT |
| Borrelia (Lyme Disease) Antibody, CSF | ML MISC |
| Borrelia (Lyme Disease) Antibody, Serum | BORSC |
| Botulism Toxin Test | SENDOUT |
| Brain Natriuretic Peptide (BNP) | BNP |
| Breast Discharge Cytology | ND |
| Bromide, Blood | BRM |
| Bronch Brush Quantitative, Aerobic Bacterial Culture | QRESPG |
| Bronch Brush Quantitative, Anaerobe Culture | QRESPA |
| Bronchial Brushings Cytology | BRB |
| Bronchial Washings Cytology | BRW |
| Bronchus, Anaerobe Culture | ANNC |
| Bronchus, Fungus Culture | FNG |
| Brucella Antibody, IgG & IgM | SBR |
| Brucella abortus Antibody, IgG & IgM | ML MISC |
| Buprenorphine, Urine Screen | UBUP |
| Butabarbital, Serum or Plasma | ML MISC |
| Butalbital, Serum | BBT |