Differential consideration
Bipolar II disorder
F31.81Mood Disorders
Why consider it
episodic mood elevation; not reactive mood instability
Criteria and features to review
- A. Hypomanic episode threshold has been met.
- B. Major depressive episode threshold has been met.
- C. There has never been a manic episode.
- D. The mood episodes are not better explained by schizoaffective disorder or another schizophrenia-spectrum or psychotic disorder.
Questions to clarify
- Which documented criteria and exclusions are met for each possibility?
- What timeline, course, and functional change best distinguishes the alternatives?
- Are substance, medication, medical, developmental, and contextual explanations adequately assessed?