B-ALLB-cell acute lymphoblastic leukemia
BACblood alcohol concentration
BAHABone Anchored Hearing Aid
BALbronchoalveolar lavage
BALPbone-specific alkaline phosphatase
BASCBehavior Assessment System for Children
BASDAIBath Ankylosing Spondylitis Disease Activity Index
BB-AVFbrachiobasilic arteriovenous fistula
BCBAboard-certified behavior analyst
BCGBacillus Calmette-Guerin
BCRLbreast cancer-related lymphedema
BCSbreast-conserving surgery
BCSVAbest spectacle-corrected visual acuity
BCTbreast-conserving therapy
bDMARDbiologic disease-modifying antirheumatic drug
bEVARbranched endovascular aneurysm repair
BFIEbenign familial infantile epilepsy
BHRBirmingham Hip Resurfacing
BIBEMSbrought in by emergency medical services
BiPAPbi-level positive airway pressure
BLAFBehavior Language Assessment Form
BLEbilateral lower extremities
BLMBenadryl, Lidocaine, Maalox
BLSIblunt liver and spleen injury
BMACBone Marrow Aspirate Concentrate
BMCBone Marrow Concentrate
BMPbone morphogenetic protein
BMTbone marrow transplantation
BNPbrain natriuretic peptide
BOADICEABreast and Ovarian Analysis of Disease Incidence and Carrier Estimation Algorithm
BOObladder outlet obstruction
BOOPBronchiolitis Obliterans Organizing Pneumonia
BPADbipolar affective disorder
BPDborderline personality disorder
BPD/DSbiliopancreatic diversion with duodenal switch
BPEbenign prostatic enlargement
BPFbronchopleural fistula
BPHbenign prostatic hyperplasia
BPHTNblood pressure hypertension
BPLTBAK-preserved latanoprost-timolol
BPObenign prostatic obstruction
BPPVbenign paroxysmal positional vertigo
BRAFv-Rapidly Accelerated Fibrosarcoma murine sarcoma viral oncogene homolog B
BRATbananas, rice, apple sauce, and toast (or tea)
BRBPRbright red blood per rectum
BRRBbright red rectal bleeding
BRUEbrief resolved unexplained event
BSAPbone specific alkaline phosphatase
BSObilateral salpingo-oophorectomy
BSSOBilateral Sagittal Split Osteotomy
BSSRObilateral sagittal split ramus osteotomy
BVABbacterial vaginosis-associated bacteria
BVDbilateral vestibular dysfunction