- dyssynergia
- dysthymic disorder
- dystonia
- dystonia musculorum deformans
- dysuria
- DéjerineKlumpke syndrome
- DéjerineRoussy syndrome
- déjà vu
- DE amplitude
- DE slope
- early afterdepolarization
- early diastolic murmur
- early systolic murmur
- earlystage uremia
- eastern equine encephalitis
- Ebola hemorrhagic fever
- Ebstein syndrome, Ebstein anomaly
- ECG exercise test
- echinochasmiasis
- echinococcosis granulosa
- echinococcosis multilocularis
- echinostomiasis
- echo beat
- echocardiography, ultrasonic cardiography, UCG
- echolalia
- echopraxia
- ectopia cordis
- effusive pericarditis
- EhlersDanlos syndrome
- Eisenmenger syndrome
- ejection fraction
- ejection murmur
- ejection time
- ejection time index
- elation
- electric shock therapy, electroconvulsive therapy, ECT
- electrical mechanical dissociation
- electrocardiogram, ECG
- electrocorticogram
- electrocorticography
- electroencephalogram
- electroencephalography
- electromyelography
- electromyogram
- electromyography, EMG
- electroneurography
- electronic endoscopy, videoendoscopy
- electrophysiologic study, EPS
- electrophysiology
- electrothalamogram