- Berlin's disease or edema (traumatic) 921.3
- Berloque dermatitis 692.72
- Bernard-Horner syndrome (see also Neuropathy, peripheral, autonomic) 337.9
- Bernard-Sergent syndrome (acute adrenocortical insufficiency) 255.41
- Bernard-Soulier disease or thrombopathy 287.1
- Bernhardt's disease or paresthesia 355.1
- Bernhardt-Roth disease or syndrome (parasthesia) 355.1
- Bernheim's syndrome (see also Failure, heart) 428.0
- Bertielliasis 123.8
- Bertolotti's syndrome (sacralization of fifth lumbar vertebra) 756.15
- Berylliosis (acute) (chronic) (lung) (occupational) 503
- Besnier's
- Besnier-Boeck disease or sarcoid 135
- Besnier-Boeck-Schaumann disease (sarcoidosis) 135
- Best's disease 362.76
- Bestiality 302.1
- Beta thalassemia (major) (minor) (mixed) 282.49
- Beta-adrenergic hyperdynamic circulatory state 429.82
- Beta-aminoisobutyric aciduria 277.2
- Beta-mercaptolactate-cysteine disulfiduria 270.0
- Beurmann's disease (sporotrichosis) 117.1
- Bezoar 938
