A disorder characterized by two or more episodes in which the patient's mood and activity levels are significantly disturbed, this disturbance consisting on some occasions of an elevation of mood and increased energy and activity (hypomania or mania) and on others of a lowering of mood and decreased energy and activity (depression). Repeated episodes of hypomania or mania only are classified as bipolar (F31.8).
Includes: manic-depressive:
. illness
. psychosis
. reaction
Excludes: bipolar disorder, single manic episode (F30.-)
cyclothymia (F34.0)
F31.0
Bipolar affective disorder, current episode hypomanic
The patient is currently hypomanic, and has had at least one other affective episode (hypomanic, manic, depressive, or mixed) in the past.
F31.1
Bipolar affective disorder, current episode manic without psychotic symptoms
The patient is currently manic, without psychotic symptoms (as in F30.1), and has had at least one other affective episode (hypomanic, manic, depressive, or mixed) in the past.
F31.2
Bipolar affective disorder, current episode manic with psychotic symptoms
The patient is currently manic, with psychotic symptoms (as in F30.2), and has had at least one other affective episode (hypomanic, manic, depressive, or mixed) in the past.
F31.3
Bipolar affective disorder, current episode mild or moderate depression
The patient is currently depressed, as in a depressive episode of either mild or moderate severity (F32.0 or F32.1), and has had at least one authenticated hypomanic, manic, or mixed affective episode in the past.
F31.4
Bipolar affective disorder, current episode severe depression without psychotic symptoms
The patient is currently depressed, as in severe depressive episode without psychotic symptoms (F32.2), and has had at least one authenticated hypomanic, manic, or mixed affective episode in the past.
F31.5
Bipolar affective disorder, current episode severe depression with psychotic symptoms
The patient is currently depressed, as in severe depressive episode with psychotic symptoms (F32.3), and has had at least one authenticated hypomanic, manic, or mixed affective episode in the past.
F31.6
Bipolar affective disorder, current episode mixed
The patient has had at least one authenticated hypomanic, manic, depressive, or mixed affective episode in the past, and currently exhibits either a mixture or a rapid alteration of manic and depressive symptoms.
Excludes: single mixed affective episode (F38.0)
F31.7
Bipolar affective disorder, currently in remission
The patient has had at least one authenticated hypomanic, manic, or mixed affective episode in the past, and at least one other affective episode (hypomanic, manic, depressive, or mixed) in addition, but is not currently suffering from any significant mood disturbance, and has not done so for several months. Periods of remission during prophylactic treatment should be coded here.
F31.8
Other bipolar affective disorders
Bipolar Il disorder
Recurrent manic episodes
F31.9
Bipolar affective disorder, unspecified
