- Dysplasia - see also Anomaly
- Dyspnea (nocturnal) (paroxysmal) 786.09
- Dyspraxia 781.3
- Dysproteinemia 273.8
- Dysprothrombinemia (constitutional) (see also Defect, coagulation) 286.3
- Dysreflexia, autonomic 337.3
- Dysrhythmia
- Dyssecretosis, mucoserous 710.2
- Dyssocial reaction, without manifest psychiatric disorder
- Dyssomnia NEC 780.56
- Dyssplenism 289.4
- Dyssynergia
- Dystasia, hereditary areflexic 334.3
- Dysthymia 300.4
- Dysthymic disorder 300.4
- Dysthyroidism 246.9
- Dystocia 660.9
- Dystonia
- Dystonic
- Dystopia kidney 753.3
- Dystrophy, dystrophia 783.9
- Dysuria 788.1