I
I cell disease (use: Mucolipidosis)
Icterus gravis neonatorum (use: Fetal erythroblastosis)
Icthyiosis
Ileitis
Illness (use: Disease)
Immunologic deficiency syndromes
Immunologic diseases
Imperforate anus
Incontinentia pigmenti
Infant death
Infant nutrition disorders
Infantile diarrhea
Infantile paralysis (use: Poliomyelitis)
Infections
Infectious arthritis
Infectious diseases (use: Communicable diseases)
Infectious mononucleosis
Infertility
Inflammations
Inflammatory bowel diseases
Influenza
Injuries
Intentional injuries
Intestinal diseases
Intrauterine growth retardation (use: Fetal growth retardation)
Intravenous drug abuse
Iron deficiency anemia
Iron overload diseases
Ischemia