is a specific kind of: intervention, treatment.

is a broader term that covers: primary care | aftercare | hospital care, hospitalisation, hospitalization | therapy | nursing care | irrigation | bandaging, binding, dressing | holistic medicine | hospice | injection, shot | bloodletting | defibrillation | detoxification | disinfection | digitalisation, digitalization | anticoagulation | allopathy | homeopathy, homoeopathy | intensive care ... show more.

has as a part: medical diagnosis.