DSM+II+1968

DEFINITIONS OF TERMS 27
292.1 Psychosis with other syphilis of central nervous system
This includes all other varieties of psychosis attributed to intracranial
infection by Spirochaeta pallida. The syndrome sometimes has features
of organic brain syndrome. The acute infection is usually produced
by meningovascular inflammation and responds to systemic
antisyphilitic treatment. The chronic condition is generally due to
gummata. If not of psychotic proportion, the disorder is classified
Non-psychotic OBS with intracranial infection. (In DSM-I "Chronic
Brain Syndrome associated with other central nervous system syphilis"
and "Acute Brain Syndrome associated with intracranial infection"
covered this category.)
292.2 Psychosis with epidemic encephalitis
(von Economo's encephalitis)
This term is confined to the disorder attributed to the viral epidemic
encephalitis that followed World War I. Virtually no cases
have been reported since 1926. The condition, however, is differentiated
from other encephalitis. It may present itself as acute delirium
and sometimes its outstanding feature is apparent indifference
to persons and events ordinarily of emotional significance, such as the
death of a family member. It may appear as a chronic brain syndrome
and is sometimes dominated by involuntary, compulsive behavior.
If not of psychotic proportions, the disorder is classified under
Non-psychotic OBS with intracranial infection. (This category was
classified under "Chronic Brain Syndrome associated with intracranial
infection other than syphilis" in DSM-I.)
292.3 Psychosis with other and unspecified encephalitis
This category includes disorders attributed to encephalitic infections
other than epidemic encephalitis and also to encephalitis not otherwise
specified. 1 When possible the type of infection should be indicated.
If not of psychotic proportion, the disorder is classified under
Non-psychotic OBS with intracranial infection.
292.9 Psychosis with other [and unspecified]
intracranial infection
This category includes all acute and chronic conditions due to nonsyphilitic
and non-encephalitic infections, such as meningitis and
1 A list of important encephalitides may be found in "A Guide to the Control
of Mental Disorders," American Public Health Association Inc., New York
1962, pp. 40 ff.