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296 Affective psychoses

          Mental disorders, usually recurrent, in which there is a severe disturbance of
          mood [mostly compounded of depression and anxiety but also manifested as
          elation and excitement] which is accompanied by one or more of the following:
          delusions, perplexity, disturbed attitude to self, disorder of perception and
          behavior; these are all in keeping with the patient's prevailing mood [as are
          hallucinations when they occur]. There is a strong tendency to suicide. For
          practical reasons, mild disorders of mood may also be included here if the
          symptoms match closely the descriptions given; this applies particularly to
          mild hypomania.
          Excludes: neurotic depression (300.4)
           reactive depressive psychosis (298.0)
           reactive excitation (298.1)

296.0 Manic-depressive psychosis, manic type

          Mental disorders characterized by states of elation or excitement out of
          keeping with the patient's circumstances and varying from enhanced liveliness
          [hypomania] to violent, almost uncontrollable excitement. Aggression and
          anger, flight of ideas, distractibility, impaired judgement, and grandiose
          ideas are common.
          Hypomania NOS Manic psychosis
          Hypomanic psychosis Manic-depressive psychosis or reaction:
          Mania (monopolar) NOS hypomanic
          Manic disorder manic
          Excludes: circular type, if there was a previous attack of depression

296.1 Manic-depressive psychosis, depressed type

          An affective psychosis in which there is a widespread depressed mood of gloom
          and wretchedness with some degree of anxiety. There is often reduced activity
          but there may be restlessness and agitation. There is a marked tendency to
          recurrence; in a few cases this may be at regular intervals.
          Depressive psychosis Manic-depressive psychosis or reaction
          Endogenous depression Monopolar depression
          Involutional melancholia Psychotic depression
          Excludes: circular type, if previous attack was of manic type (296.3)
           depression NOS (311)

296.2 Manic-depressive psychosis, circular type but currently manic

          An affective psychosis which has appeared in both the depressive and the manic
          form, either alternating or separated by an interval of normality, but in
          which the manic form is currently present. [The manic phase is far less
          frequent than the depressive.]
          Bipolar disorder, now manic
          Excludes: brief compensatory or rebound mood swings (296.8)

296.3 Manic-depressive psychosis, circular type but currently depressed

          Circular type (see 296.2) in which the depressive form is currently present.
          Bipolar disorder, now depressed
          Excludes: brief compensatory or rebound mood swings (296.8)

296.4 Manic-depressive psychosis, circular type, mixed

          An affective psychosis in which both manic and depressive symptoms are present
          at the same time.

296.5 Manic-depressive psychosis, circular type, current condition not

          Circular type (see 296.2) in which the current condition is not specified as
          either manic or depressive.

296.6 Manic-depressive psychosis, other and unspecified

          Use this code for cases where no other information is available, except the
          unspecified term, manic-depressive psychosis, or for syndromes corresponding
          to the descriptions of depressed (296.1) or manic (296.0) types but which for
          other reasons cannot be classified under 296.0-296.5.
          Manic-depressive: Manic-depressive psychosis:
           reaction NOS NOS
           syndrome NOS mixed type

296.8 Other

          Excludes: psychogenic affective psychoses (298.-)

296.9 Unspecified

          Affective psychosis NOS
          Melancholia NOS
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