Depression ICD-10 Codes: Essential Quick Reference Guide
Understanding depression ICD-10 coding is critical for accurate clinical documentation and billing. The two primary depression ICD-10 codes are F32 (major depressive disorder, single episode) and F33 (major depressive disorder, recurrent). Each depression ICD-10 code includes subcodes that specify severity — mild, moderate, severe without psychotic features, severe with psychotic features, and remission status. Selecting the correct depression ICD-10 subcode requires thorough documentation of episode history, current severity level, and functional impairment in the clinical record.
F32 and F33 Defined
F32 (Major Depressive Disorder, Single Episode) applies when a patient meets DSM-5 criteria for MDD and has no prior depressive episodes. F33 (Major Depressive Disorder, Recurrent) applies when the patient has had two or more distinct episodes separated by at least two months of remission. Severity and remission specifiers are appended as subcodes to both categories.
Complete F32 Subcode Table: Single Episode Depression
Each F32 subcode reflects a distinct clinical picture. Payers and auditors look for documentation that matches the selected code — vague language like “client reports low mood” rarely satisfies specificity requirements for moderate or severe codes.
| Code | Description | Key Documentation Requirement |
|---|---|---|
| F32.0 | Major depressive disorder, single episode, mild | 5–6 DSM-5 symptoms; minimal functional impairment; client manages daily responsibilities |
| F32.1 | Major depressive disorder, single episode, moderate | 6–7 symptoms; noticeable impairment in work, relationships, or self-care |
| F32.2 | Major depressive disorder, single episode, severe, without psychotic features | Most or all 9 DSM-5 symptoms; significant functional impairment; document absence of psychosis explicitly |
| F32.3 | Major depressive disorder, single episode, severe, with psychotic features | Meets F32.2 criteria plus mood-congruent or mood-incongruent delusions or hallucinations; document psychotic symptoms specifically |
| F32.4 | Major depressive disorder, single episode, in partial remission | Previously met full criteria; some symptoms remain but full criteria no longer met; document symptom reduction with specific examples |
| F32.5 | Major depressive disorder, single episode, in full remission | No significant symptoms for at least 2 months; document absence of active criteria with functional baseline |
| F32.9 | Major depressive disorder, single episode, unspecified | Use only when severity cannot be determined; avoid routinely — payers may deny or flag for audit |
| F32.A | Other specified depressive episodes (e.g., recurrent brief depression) | Symptoms cause distress but do not meet full MDD criteria; document specific features that distinguish from F32.0–F32.9 |
Complete F33 Subcode Table: Recurrent Depressive Disorder
F33 codes mirror F32 severity levels but carry an additional clinical implication: the patient has experienced at least one prior depressive episode. The two-month symptom-free interval between episodes is the defining transition point.
| Code | Description | Key Documentation Requirement |
|---|---|---|
| F33.0 | Major depressive disorder, recurrent, mild | Document prior episode history; current episode meets mild criteria (5–6 symptoms, minimal impairment) |
| F33.1 | Major depressive disorder, recurrent, moderate | Prior episode documented; current episode with noticeable functional impairment across at least one domain |
| F33.2 | Major depressive disorder, recurrent, severe, without psychotic features | Prior episode history plus current severe presentation; explicitly document absence of psychotic features |
| F33.3 | Major depressive disorder, recurrent, severe, with psychotic features | Prior episodes plus current psychotic symptoms; document each psychotic feature separately |
| F33.40 | Major depressive disorder, recurrent, in remission, unspecified | Prior recurrent episodes; current remission status unclear; avoid when partial vs. full remission can be determined |
| F33.41 | Major depressive disorder, recurrent, in partial remission | Some symptoms remain; document which criteria are no longer fully met and current functional level |
| F33.42 | Major depressive disorder, recurrent, in full remission | No active criteria for at least 2 months; document return to baseline functioning |
| F33.9 | Major depressive disorder, recurrent, unspecified | Avoid when possible; use only when severity genuinely cannot be specified; audit risk is higher |
F32 vs. F33: When to Transition Between Codes
A patient who presented with a first depressive episode (F32.1) and achieved full remission, then returns six months later meeting MDD criteria again, should now be coded F33.1 — not F32.1. The transition requires documentation of the prior episode and the two-month or longer symptom-free interval between episodes.
In practice, this means your intake or reassessment note needs to explicitly reference the prior episode. Something like: “Client previously met criteria for MDD (single episode, moderate) from [date range], achieving full remission by [date]. Client now presents with a recurrent episode meeting criteria for moderate severity.” That language directly supports the F33.1 code and protects against an audit challenge.
Annotated Progress Note Snippets by Severity
The following examples show the kind of language that satisfies documentation requirements at each severity level. These are illustrative — your notes should reflect your actual clinical observations.
F32.0 / F33.0 (Mild): “Client reports low mood and fatigue for the past two weeks, with mild difficulty concentrating at work. Sleep is mildly disrupted (waking 1–2x nightly). Client continues to meet work obligations and maintain social relationships. Five of nine DSM-5 criteria present; functional impairment is minimal.”
F32.1 / F33.1 (Moderate): “Client endorses depressed mood, anhedonia, fatigue, hypersomnia, psychomotor slowing, and difficulty concentrating. Has missed two days of work this week and withdrawn from family activities. Six of nine DSM-5 criteria present; moderate impairment across occupational and social functioning.”
F32.2 / F33.2 (Severe, without psychotic features): “Client presents with markedly depressed mood, near-total anhedonia, significant weight loss (8 lbs in 3 weeks), insomnia, psychomotor agitation, fatigue, worthlessness, impaired concentration, and passive suicidal ideation without plan or intent. Eight of nine DSM-5 criteria present. Functional impairment is severe — client is unable to work or manage basic self-care. No perceptual disturbances or delusional thinking noted.”
The Full Depression Code Family: Beyond F32 and F33
F32 and F33 cover most MDD presentations, but several adjacent codes are clinically important.
- F34.1 — Persistent Depressive Disorder (Dysthymia): Depressed mood for at least two years with at least two additional symptoms. Distinguish from MDD by chronicity rather than episodic severity. A patient with dysthymia who also develops a full MDD episode may warrant a “double depression” coding sequence.
- F53.0 — Postpartum Depression: Used for a depressive episode with onset within four weeks postpartum. Note that ICD-10-CM uses F53.0 rather than applying F32 with a postpartum specifier. DSM-5 uses the peripartum specifier with MDD, so the crosswalk matters for billing.
- F06.31 — Depressive Disorder Due to Another Medical Condition: Use when a general medical condition (e.g., hypothyroidism, Parkinson’s disease) is the direct physiological cause. Document the medical condition and the causal relationship explicitly.
- F32.A — Other Specified Depressive Episode: Added in ICD-10-CM 2021. Covers presentations like recurrent brief depression or short-duration depressive episodes that cause significant distress but do not meet full MDD criteria.
Co-Occurring Diagnoses: Coding Sequence for Depression with Anxiety or PTSD
Many clients carry both a depressive disorder and an anxiety disorder or PTSD. ICD-10-CM does not have a combined code for depression and anxiety (unlike ICD-11), so both conditions are coded separately. The sequencing question — which code goes first — typically follows the reason for the visit or the condition requiring the most clinical attention.
For a client in therapy primarily for MDD who also has generalized anxiety disorder (F41.1), list F33.1 first and F41.1 second. If the primary presenting concern is PTSD (F43.10) with secondary depression, reverse the sequence. Some payers have specific sequencing rules — confirm with your billing guidelines.
One practical note: F32 and F33 have an Excludes1 relationship with bipolar disorder codes (F30–F31). If a client has a bipolar diagnosis, do not add an F32 or F33 code for the depressive phase — use the appropriate bipolar code with the depressive episode specifier instead.
If you’re spending more time verifying code documentation than you are on clinical work, AutoNotes can help. The platform generates structured, editable progress note drafts with service-specific templates — so you start from a note that already captures the severity language payers look for, rather than building from a blank page. Try AutoNotes free and see how quickly you can move from session to finalized note.
Common Documentation Mistakes That Trigger Audits
Audit risk for depression codes usually comes down to a mismatch between the code billed and the language in the note. These are the patterns that most often cause problems:
- Using F32.9 or F33.9 as a default: Unspecified codes signal that severity was not assessed. Payers may request additional documentation or deny the claim. Use them only when severity genuinely cannot be determined at the time of service.
- Not documenting the number of DSM-5 criteria met: Severity codes (mild, moderate, severe) map directly to symptom count and functional impairment. Notes that describe mood without counting symptoms leave the code unsupported.
- Failing to document the absence of psychotic features for F32.2/F33.2: “Severe without psychotic features” requires you to note that psychosis was assessed and ruled out — not just that it wasn’t mentioned.
- Not recording prior episode history when transitioning to F33: If your note doesn’t reference the prior episode and the remission interval, the recurrent designation has no clinical support in the record.
Severity changes across sessions also require documentation. If a client moves from F33.1 to F33.2 between sessions, the progress note for the session where you change the code should reflect the clinical reasoning — increased symptom count, worsening functional impairment, or both.
DSM-5 to ICD-10-CM Crosswalk for Depression
| DSM-5 Diagnosis | ICD-10-CM Code |
|---|---|
| Major Depressive Disorder, Single Episode, Mild | F32.0 |
| Major Depressive Disorder, Single Episode, Moderate | F32.1 |
| Major Depressive Disorder, Single Episode, Severe | F32.2 |
| Major Depressive Disorder, Single Episode, with Psychotic Features | F32.3 |
| Major Depressive Disorder, Recurrent, Moderate | F33.1 |
| Major Depressive Disorder, Recurrent, Severe | F33.2 |
| Persistent Depressive Disorder (Dysthymia) | F34.1 |
| Postpartum Depression (Peripartum Onset Specifier) | F53.0 |
| Depressive Disorder Due to Another Medical Condition | F06.31 |
Which F32 or F33 Code Should You Use? A Decision Guide
Work through these questions in order:
- Has the client had a prior depressive episode with at least two months of remission between episodes? If yes, use F33. If no, use F32.
- How many DSM-5 criteria are currently met? Five to six with minimal impairment = mild. Six to seven with noticeable impairment = moderate. Most or all nine with significant impairment = severe.
- Are psychotic features present? If yes, use F32.3 or F33.3. If no, document that psychosis was assessed and absent before coding F32.2 or F33.2.
- Is the client in remission? Some symptoms remaining = partial remission (F32.4, F33.41). No symptoms for two or more months = full remission (F32.5, F33.42).
- Could this be a different depressive disorder? Consider F34.1 for chronic low-grade depression (2+ years), F53.0 for postpartum onset, or F06.31 if a medical condition is causally involved.
Frequently Asked Questions: Depression ICD-10 Codes
What is the ICD-10 code for major depressive disorder?
The ICD-10-CM codes for major depressive disorder are F32 (single episode) and F33 (recurrent). Each has subcodes for severity: F32.0 (mild), F32.1 (moderate), F32.2 (severe without psychotic features), and F32.3 (severe with psychotic features). F33 uses the same severity structure for recurrent episodes.
What is the difference between F32 and F33 in ICD-10?
F32 is used for a first or single depressive episode. F33 is used when the patient has had two or more distinct depressive episodes separated by at least two months without significant depressive symptoms. The transition from F32 to F33 requires documentation of the prior episode and the symptom-free interval in the clinical record.
When should I use F32.9 instead of a specific subcode?
F32.9 (major depressive disorder, single episode, unspecified) should be used only when severity genuinely cannot be determined — for example, at an initial contact before a full assessment is complete. Routine use of unspecified codes increases audit risk and may result in claim denials. Once severity is assessed, update to the appropriate subcode.
How do I document severity to justify F32.2 (severe without psychotic features)?
Your progress note should document that the patient meets most or all nine DSM-5 MDD criteria, that functional impairment is significant (unable to work, manage self-care, or maintain relationships), and explicitly state that no psychotic features — delusions, hallucinations, or disorganized thinking — were present. The absence of psychosis must be noted, not just implied.
How do I code depression when a patient also has anxiety or PTSD?
Code both conditions separately. ICD-10-CM does not have a combined depression-anxiety code. List the diagnosis requiring the most clinical attention first. F32 and F33 have an Excludes1 note with bipolar codes — do not add an MDD code to a bipolar diagnosis for the depressive phase. Verify sequencing requirements with your payer contracts.
What ICD-10 code is used for postpartum depression?
ICD-10-CM uses F53.0 for postpartum depression with onset within four weeks of delivery. This differs from DSM-5, which applies a peripartum specifier to an MDD diagnosis. For billing purposes, F53.0 is the correct ICD-10-CM code rather than F32 with a specifier notation.
What is the ICD-10 code for dysthymia or persistent depressive disorder?
Persistent depressive disorder (dysthymia) is coded as F34.1 in ICD-10-CM. It applies when depressed mood has been present for at least two years with at least two additional depressive symptoms. It is distinct from F32/F33, which require episodic presentations meeting full MDD criteria.
What documentation is required to justify F32.2 severe depression without psychotic features?
Documentation should include: the number of DSM-5 criteria met (typically 8–9), specific symptoms observed or reported, a description of functional impairment severity (occupational, social, self-care), an explicit statement that psychotic features were assessed and absent, and any relevant risk factors such as suicidal ideation with details on plan and intent.
Document Depression Codes Accurately — Starting with the Right Note Structure
Selecting the correct F32 or F33 subcode is only half the work. The other half is making sure your progress note contains the specific language — symptom count, functional impairment, psychosis assessment, episode history — that supports the code you’ve billed. That documentation burden adds up across a full caseload.
AutoNotes generates structured, editable progress note drafts built around behavioral health documentation standards. You review, edit, and finalize every note — the platform gives you a faster, more consistent starting point rather than a blank page. If you’re documenting depression diagnoses across multiple clients and want notes that capture the right clinical detail from the start, it’s worth seeing how the workflow fits.
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This content is for informational and educational purposes only and does not constitute medical, legal, or billing advice. Always verify coding decisions with a certified medical coder or compliance officer for your specific payer contracts. ICD-10-CM codes are updated annually; confirm current code validity with the official CMS ICD-10-CM tabular list. Documentation requirements may vary by payer, state, and care setting. Last reviewed: 2025.
