Quick reference
- When to use
- Use F32.1 when the client meets criteria for Major Depressive Disorder, Single Episode, Moderate. Confirm episode type (single vs. recurrent) and severity level before coding. Always screen for bipolar history before assigning a unipolar depression code.
- Duration
- Symptoms must be present for at least 2 weeks. For recurrent codes (F33.x), document history of prior episodes with periods of remission. Reassess severity each session using PHQ-9.
- Session codes
- Pair with CPT 90791 (intake), 90834 (45-min), or 90837 (60-min). Use 96127 for PHQ-9 screening. Add 90863 for pharmacological management with therapy. Crisis sessions: 90839 + 90840.
- Key indicators
- Depressed mood or loss of interest/pleasure (at least one required) • Sleep changes • Appetite/weight changes • Fatigue • Worthlessness or guilt • Concentration difficulty • Psychomotor changes • Suicidal ideation
What F32.1 represents
Moderate depression represents a level of symptom severity between mild and severe. Clients typically experience noticeable impairment in their ability to function at work, maintain relationships, and manage daily activities.
This is one of the most commonly used depression codes in clinical practice, as many clients present with symptoms that clearly exceed the mild threshold but haven't yet reached severe levels.
Key diagnostic criteria
- Five or more depressive symptoms present for at least 2 weeks
- Depressed mood or loss of interest/pleasure must be one of the symptoms
- Moderate number of symptoms beyond minimum threshold
- Moderate degree of functional impairment
- PHQ-9 scores typically in the 10-14 range
Additional symptoms include: significant weight/appetite change, insomnia or hypersomnia, psychomotor agitation or retardation, fatigue, worthlessness or guilt, concentration difficulties, recurrent thoughts of death.
Documentation essentials
Document symptom count and severity. Record functional impact in specific domains. Track with PHQ-9 or BDI-II. Note this is a single (first) episode.
Differential diagnosis
- Bipolar depression – screen for manic/hypomanic history
- Persistent Depressive Disorder – requires 2+ years of symptoms
- Adjustment disorder – must identify a clear stressor within 3 months
- Grief/bereavement – DSM-5-TR provides guidance on distinguishing normal grief from MDD
Treatment planning
Combined psychotherapy and pharmacotherapy often recommended for moderate depression. CBT, IPT, and behavioral activation are first-line psychotherapy options. SSRIs are typically first-line medication.
Insurance & billing
F32.1 is widely accepted. Document medical necessity for combined treatment when appropriate.
Updates & changes
DSM-5-TR removed the bereavement exclusion, affecting how we diagnose depression following loss.
Documentation pitfalls
Don't use 'single episode' if there's a history of previous episodes (use F33.x instead). Always screen for bipolar history before diagnosing unipolar depression.
References
- American Psychiatric Association. (2022). Diagnostic and Statistical Manual of Mental Disorders (5th ed., text rev.).
- NICE. (2022). Depression in adults: treatment and management.