ICD-10 Code F33.0 – Major depressive disorder, recurrent, mild (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F33.0 – Major depressive disorder, recurrent, mild
What it is
F33.0 identifies a recurrent major depressive disorder with mild severity. Use it when the patient has had prior depressive episodes and the current episode meets criteria for major depression but is described as mild.
Clinical signs
Typical findings include depressed mood, loss of interest, low energy, sleep or appetite changes, and reduced concentration. Clinical features vary; refer to documentation, and confirm that the episode is recurrent rather than a first episode.
When to use this code
Use F33.0 when the record documents recurrent major depressive disorder and the current episode is mild. It fits outpatient or inpatient notes that clearly describe a mild depressive episode with a history of previous episodes. Check documentation if severity or recurrence is unclear.
Do not use for
Do not use this code for a single episode of major depression, bipolar disorder, or depressive symptoms that do not meet major depressive disorder criteria. If the chart does not support recurrence or mild severity, check documentation.
Coding tip
Confirm both recurrence and current severity in the provider note before assigning F33.0.