Diagnosis information

Bipolar I disorder

Core diagnostic criteria, specifiers, differential considerations, and documentation support in one open, scan-friendly view.

F31.1x-F31.9Mood DisordersLocal clinical reference

Criteria: 2 criteria, A–B
Specifiers: 13 specifiers
Differentials: 6 considerations
Severity specifier: Supported

Core diagnostic criteria

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A
Core criterion A
≥1 full manic episode (abnormally elevated/expansive/irritable mood + ↑energy, ≥7 days or any duration if hospitalised)
B
Core criterion B
Manic episode not better explained by schizoaffective, schizophrenia, schizophreniform, delusional, or other psychotic disorder

Specifiers

Current or most recent episode: Manic / Hypomanic / Depressed: Identifies polarity of current or most recent episode.
With psychotic features: Hallucinations or delusions present during mood episodes.
In partial remission / In full remission: Partial symptom resolution or full return to baseline.
With anxious distress: Prominent tension, restlessness, or worry.
With mixed features: Concurrent manic and depressive symptoms.
With rapid cycling: ≥4 mood episodes in 12 months.
With melancholic features: Anhedonia, non-reactive mood, psychomotor disturbance.
With atypical features: Mood reactivity, hypersomnia, increased appetite, rejection sensitivity.
With mood-congruent psychotic features: Psychosis aligned with manic/depressive themes.
With mood-incongruent psychotic features: Psychosis not aligned with mood state.
With catatonia: Catatonic motor or behavioural features.
With peripartum onset: Onset during pregnancy or within four weeks postpartum.
With seasonal pattern: Episodes display seasonal recurrence.

Documentation support

Consistent with [Bipolar I Disorder] [specifier(s)]. During a distinct period of at least one week, there have been abnormally elevated or expansive mood; irritable mood; inflated self-esteem; grandiosity; decreased need for sleep; increased talkativeness; pressured speech; flight of ideas; racing thoughts; distractibility; increased goal-directed activity; psychomotor agitation; engagement in high-risk or harmful activities, forming a pattern meeting the threshold for a manic episode with at least three symptoms (or four when mood is irritable). The presentation is further characterised by marked mood dysregulation with associated changes in energy, activity, and behaviour, and may include major depressive episodes where relevant. These symptoms have resulted in clinically significant impairment, interpersonal or occupational disruption, or required hospitalisation, and the disturbance is not better explained by schizoaffective disorder, schizophrenia, schizophreniform disorder, delusional disorder, or substance/medication effects.

Adapt this supplied template to the assessment. It is not a substitute for diagnostic reasoning or local documentation requirements.

DSM-5 DiagnosisDSM-mood-bipolar-i-disorderSupplied local catalogue