Hospitalism (or anaclitic depression in its sublethal form)[1] was a pediatric diagnosis used in the 1930s to describe infants who wasted away while in a hospital. The symptoms could include decreased physical development and disruption of perceptual-motor skills and language.[2] In the first half of the 20th century, hospitalism was discovered to be linked to social deprivation between an infant and its caregiver.[3] The term was in use in 1945, but the term can be traced back as early as 1897.[4]
It appears under adjustment disorders at F43.2, in the World Health Organization's classification of diseases, ICD-10.[5]