Diagnostic criteria for 295.20 (Schizophrenia) Catatonic Type

A type of Schizophrenia in which the clinical picture is dominated by at least two of the following: 

(1) motoric immobility as evidenced by catalepsy (including waxy flexibility) or stupor 
(2) excessive motor activity (that is apparently purposeless and not influenced by external stimuli) 
(3) extreme negativism (an apparently motiveless resistance to all instructions or maintenance of a rigid posture against attempts to be moved) or mutism 
(4) peculiarities of voluntary movement as evidenced by posturing (voluntary assumption of inappropriate or bizarre postures), stereotyped movements, prominent mannerisms, or prominent grimacing 
(5) echolalia or echopraxia

Reprinted with permission from the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision. Copyright 2000 American Psychiatric Association

A type of Schizophrenia in which the clinical picture is dominated by at least two of the following: 

(1) motoric immobility as evidenced by catalepsy (including waxy flexibility) or stupor 
(2) excessive motor activity (that is apparently purposeless and not influenced by external stimuli) 
(3) extreme negativism (an apparently motiveless resistance to all instructions or maintenance of a rigid posture against attempts to be moved) or mutism 
(4) peculiarities of voluntary movement as evidenced by posturing (voluntary assumption of inappropriate or bizarre postures), stereotyped movements, prominent mannerisms, or prominent grimacing 
(5) echolalia or echopraxia

Reprinted with permission from the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition. Copyright 1994 American Psychiatric Association