- Eagle-Barrett syndrome 756.71
- Eales' disease (syndrome) 362.18
- Ear - see also condition
- Earache 388.70
- Early satiety 780.94
- Eaton-Lambert syndrome (see also Syndrome, Lambert-Eaton) 358.30
- Eberth's disease (typhoid fever) 002.0
- Ebstein's
- Eccentro-osteochondrodysplasia 277.5
- Ecchondroma (M9210/0) - see Neoplasm, bone, benign
- Ecchondrosis (M9210/1) 238.0
- Ecchordosis physaliphora 756.0
- Ecchymosis (multiple) 459.89
- ECD (Erdheim-Chester disease) 277.89
- Echinococciasis - see Echinococcus
- Echinococcosis - see Echinococcus
- Echinococcus (infection) 122.9
- Echinorhynchiasis 127.7
- Echinostomiasis 121.8
- ECHO virus infection NEC 079.1
- Echolalia 784.69
- Eclampsia, eclamptic (coma) (convulsions) (delirium) 780.39