MDD ICD-10 Codes: F32 and F33 Major Depressive Disorder Code List (FY2027)
Major depressive disorder is coded on two axes: is this the first episode or a recurrence, and how severe is it now? F32 covers a single episode and F33 covers recurrent MDD, and each splits by severity, psychotic features, and remission. Getting the axis right is most of the work.
Short answer
The ICD-10-CM codes for major depressive disorder (MDD) are F32.0 to F32.5 and F32.9 for a single episode, and F33.0 to F33.3, F33.40 to F33.42, and F33.9 for recurrent MDD. Each is chosen by severity (mild, moderate, severe, with or without psychotic features) or remission status. F32.9 and F33.9 are the unspecified codes; F32.A is "Depression, unspecified" when MDD hasn't been established.
MDD codes, single episode vs. recurrent
| Severity or status | Single episode (F32) | Recurrent (F33) |
|---|---|---|
| Mild | F32.0 | F33.0 |
| Moderate | F32.1 | F33.1 |
| Severe without psychotic features | F32.2 | F33.2 |
| Severe with psychotic features | F32.3 | F33.3 |
| In partial remission | F32.4 | F33.41 |
| In full remission | F32.5 | F33.42 |
| In remission, unspecified | None | F33.40 |
| Unspecified | F32.9 | F33.9 |
Recurrent means there has been at least one prior major depressive episode.
Full titles
| Code | ICD-10-CM title |
|---|---|
| F32.0 | Major depressive disorder, single episode, mild |
| F32.1 | Major depressive disorder, single episode, moderate |
| F32.2 | Major depressive disorder, single episode, severe without psychotic features |
| F32.3 | Major depressive disorder, single episode, severe with psychotic features |
| F32.4 | Major depressive disorder, single episode, in partial remission |
| F32.5 | Major depressive disorder, single episode, in full remission |
| F32.9 | Major depressive disorder, single episode, unspecified (unspecified) |
| F33.0 | Major depressive disorder, recurrent, mild |
| F33.1 | Major depressive disorder, recurrent, moderate |
| F33.2 | Major depressive disorder, recurrent severe without psychotic features |
| F33.3 | Major depressive disorder, recurrent, severe with psychotic symptoms |
| F33.40 | Major depressive disorder, recurrent, in remission, unspecified (unspecified) |
| F33.41 | Major depressive disorder, recurrent, in partial remission |
| F33.42 | Major depressive disorder, recurrent, in full remission |
| F33.9 | Major depressive disorder, recurrent, unspecified (unspecified) |
Related depression codes
| Code | ICD-10-CM title |
|---|---|
| F32.A | Depression, unspecified (unspecified) |
| F32.81 | Premenstrual dysphoric disorder |
| F32.89 | Other specified depressive episodes |
| F33.8 | Other recurrent depressive disorders |
| F34.1 | Dysthymic disorder |
| F34.81 | Disruptive mood dysregulation disorder |
F32.A, added in FY2022, is for depression not otherwise specified. It isn't a substitute for an MDD diagnosis.
Billing pitfalls
- F32.9 or F32.A on month six of therapy. Fine at intake, a review trigger later. Update the code once severity is assessed.
- Single episode when the history shows recurrence. A patient with a prior episode belongs in F33. The intake history should say so.
- Severity with nothing behind it. Document how severity was judged. A standardized measure such as the PHQ-9 helps support it.
- Headers on claims. F32.8 and F33.4 aren't billable. Use F32.81, F32.89, or F33.40 to F33.42.
More codes: behavioral health ICD-10 codes. The procedure side: behavioral health CPT codes.
Code titles from the FY2027 ICD-10-CM code set (CDC/NCHS), effective October 1, 2026 through September 30, 2027. Diagnosis is a clinical decision; this page covers how codes behave on claims, not how to diagnose.
Frequently asked questions
What is the ICD-10 code for MDD?
F32.0 to F32.5 or F32.9 for a single episode of major depressive disorder, and F33.0 to F33.42 or F33.9 for recurrent MDD, chosen by severity or remission status.
What is the ICD-10 code for MDD, recurrent, moderate?
F33.1, Major depressive disorder, recurrent, moderate.
What is the difference between F32.9 and F32.A?
F32.9 is major depressive disorder, single episode, unspecified. F32.A is depression, unspecified, for depression that hasn't been established as MDD.
What is the difference between F32 and F33?
F32 codes a single depressive episode. F33 codes recurrent major depressive disorder, when there has been at least one previous episode.
Diagnosis codes that keep up with the chart.
Stable flags unspecified depression codes on ongoing treatment and checks each diagnosis against the service before the claim goes out.
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