- Dysautonomia (see also Neuropathy, peripheral, autonomic) 337.9
- Dysbarism 993.3
- Dysbasia 719.7
- Dysbetalipoproteinemia (familial) 272.2
- Dyscalculia 315.1
- Dyschezia (see also Constipation) 564.00
- Dyschondroplasia (with hemangiomata) 756.4
- Dyschondrosteosis 756.59
- Dyschromia 709.00
- Dyscollagenosis 710.9
- Dyscoria 743.41
- Dyscraniopyophalangy 759.89
- Dyscrasia
- Dysdiadochokinesia 781.3
- Dysectasia, vesical neck 596.89
- Dysendocrinism 259.9
- Dysentery, dysenteric (bilious) (catarrhal) (diarrhea) (epidemic) (gangrenous) (hemorrhagic) (infectious) (sporadic) (tropical) (ulcerative) 009.0
- Dysequilibrium 780.4
- Dysesthesia 782.0
- Dysfibrinogenemia (congenital) (see also Defect, coagulation) 286.3
- Dysfunction
- Dysgammaglobulinemia 279.06
