- Deep venous thrombosis
- Dementia
- Dengue fever
- Dengue haemorrhagic fever
- Dental caries
- Depressive episode
- Dermatitis - general
- Diabetes mellitus in pregnancy
- Diabetic retinopathy
- Diagnostic test
- Dietary Zinc deficiency
- Diffuse pulmonary fibrosis
- Diphtheria
- Diseases of the circulatory system - general
- Diseases of the digestive system - general
- Diseases of the genito-urinary system - general
- Diseases of the musculoskeletal system - general
- Diseases of the respiratory system - general
- Diseases of the skin - general
- Disturbance of activity and attention
- Diverticular disease
- Dracunculiasis
- Draining amnion
- Dressler's syndrome
- Drug and heavy meta induced nephropathy
- Drug induced chorea
- Drug therapies
- Duodenal ulcer
- Dyspepsia
- Dysplasia of cervix