- date of birth: DOB
- dead on arrival: DOA
- deciliter: dl
- deep tendon reflexes: DTR
- deep vein thrombosis: DVT
- degenerative joint disease: DJD
- delirium tremens: DTs
- delivery room: DR
- deoxyribonucleic acid: DNA
- dermatology: Derm.
- descoid lupus erythmatosus: DLE
- diabetes insipidus: DI
- diabetes mellitus: DM
- diabetic ketoacidosis: DKA
- diagnosis: Dx
- diagnosis-related group: DRG
- Diagnostic and Statistical Manuel of Mental Disorders: DSM
- didanosine: DDI
- diethylstilbestrol; diffuse esophageal spasm: DES
- differential count (white blood cells): diff.
- digital subtraction angiography: DSA
- digoxin: digitalis: Dig.
- dilatation and curettage: D&C
- diptheria, pertussis, tetanus: DPT
- discontinue: D/C
- disseminated intravascular coagulation: DIC
- distal interphalangeal joint: DIP
- Drug Enforcement Agency: DEA
- dry sterile dressing: DSD
- dysfunctional uterine bleeding: DUB
- dyspnea on exertion: DOE