- Da Costa's syndrome (neurocirculatory asthenia) 306.2
- Daae (-Finsen) disease (epidemic pleurodynia) 074.1
- Dabney's grip 074.1
- Dacryoadenitis, dacryadenitis 375.00
- Dacryocystitis 375.30
- Dacryocystoblenorrhea 375.42
- Dacryocystocele 375.43
- Dacryolith, dacryolithiasis 375.57
- Dacryoma 375.43
- Dacryopericystitis (acute) (subacute) 375.32
- Dacryops 375.11
- Dacryosialadenopathy, atrophic 710.2
- Dacryostenosis 375.56
- Dactylitis
- Dactylolysis spontanea 136.0
- Dactylosymphysis (see also Syndactylism) 755.10
- Damage
- Dameshek's syndrome (erythroblastic anemia) 282.49
- Dana-Putnam syndrome (subacute combined sclerosis with pernicious anemia) 281.0 [336.2]
- Danbolt (-Closs) syndrome (acrodermatitis enteropathica) 686.8
- Dandruff 690.18
- Dandy fever 061
