The formal diagnosis of schizoaffective disorder, depressive type, rests on these symptoms, which can be evaluated by psychiatrists and other mental health professionals.
ICD-10 Criteria for Schizoaffective Disorder, Depressive Type
The following information is reproduced verbatim from the ICD-10 Classification of Mental and Behavioural Disorders, World Health Organization, Geneva, 1992. (Since the WHO updates the overall ICD on a regular basis, individual classifications within it may or may not change from year to year; therefore, you should always check directly with the WHO to be sure of obtaining the latest revision for any particular individual classification.)
F25.1 Schizoaffective Disorder, Depressive Type
A disorder in which schizophrenic and depressive symptoms are both prominent in the same episode of illness. Depression of mood is usually accompanied by several characteristic depressive symptoms or behavioural abnormalities such as retardation, insomnia, loss of energy, appetite or weight, reduction of normal interests, impairment of concentration, guilt, feelings of hopelessness, and suicidal thoughts. At the same time, or within the same episode, other more typically schizophrenic symptoms are present; patients may insist, for example, that their thoughts are being broadcast or interfered with, or that alien forces are trying to control them. They may be convinced that they are being spied upon or plotted against and this is not justified by their own behaviour. Voices may be heard that are not merely disparaging or condemnatory but that talk of killing the patient or discuss this behaviour between themselves. Schizoaffective episodes of the depressive type are usually less florid and alarming than schizoaffective episodes of the manic type, but they tend to last longer and the prognosis is less favourable. Although the majority of patients recover completely, some eventually develop a schizophrenic defect.
There must be prominent depression, accompanied by at least two characteristic depressive symptoms or associated behavioural abnormalities as listed for depressive episode; within the same episode, at least one and preferably two typically schizophrenic symptoms (as specified for schizophrenia), diagnostic guidelines (a)-(d) should be clearly present.
This category should be used both for a single schizoaffective episode, depressive type, and for a recurrent disorder in which the majority of episodes are schizoaffective, depressive type.
- schizoaffective psychosis, depressive type
- schizophreniform psychosis, depressive type
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