ICD-10 Code F33.1 – Major depressive disorder, recurrent, moderate (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F33.1 – Major depressive disorder, recurrent, moderate
What it is
F33.1 identifies a recurrent major depressive disorder episode of moderate severity. Use it when the patient has had previous depressive episodes and the current episode is not mild or severe.
Clinical signs
Clinical features vary; refer to documentation. Common findings include depressed mood, loss of interest, sleep or appetite changes, low energy, and impaired concentration, with symptoms significant enough to affect daily functioning.
When to use this code
Use F33.1 when the record clearly states recurrent major depressive disorder and specifies moderate severity. It is appropriate when the clinician documents a current depressive episode with prior episodes, and the presentation does not meet criteria for remission, mild, or severe depression.
Do not use for
Do not use this code for a single episode of depression or when the documentation does not confirm recurrence. If severity is not stated, or the note describes remission or a different depressive disorder, check documentation.
Coding tip
Match both elements exactly: recurrence and moderate severity; if either is missing, query the provider.