ICD-10 code guides
Reviewed July 1, 2026

ICD-10 codes for depression

Depression coding hinges on two documented dimensions: episode (single vs recurrent) and severity. Unspecified codes are valid but under-document the encounter — severity-specific codes tell the clinical story and support medical necessity.

F32.9 billable
F32.A billable

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Paste or dictate a de-identified clinical note — a few sentences is enough.

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3

Review each suggested code and its evidence, then copy the codes you agree with.

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ICD-10-CM

Extracted codes

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Paste a clinical note or load an example, then press Get codes. Suggestions appear here with the supporting evidence.

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Depression ICD-10 codes

Start with the primary code, then move to a more specific related code when the documentation supports it.

CodeDescriptionSystem

F32.9

Major depressive disorder, single episode, unspecified

ICD-10-CM

F32.A

Depression, unspecified

For "depression NOS" without MDD documentation

ICD-10-CM

F32.0

MDD, single episode, mild

ICD-10-CM

F32.1

MDD, single episode, moderate

ICD-10-CM

F32.2

MDD, single episode, severe without psychotic features

ICD-10-CM

F33.1

MDD, recurrent, moderate

ICD-10-CM

F33.2

MDD, recurrent, severe without psychotic features

ICD-10-CM

F43.21

Adjustment disorder with depressed mood

ICD-10-CM

How to choose the right code

Document and code episode plus severity: a first moderate episode is F32.1; a recurrent moderate episode is F33.1. Reserve F32.A for depression documented without meeting MDD criteria, and F43.21 when low mood is a reaction to an identifiable stressor. PHQ-9 scores in the note make severity selection defensible.

Documentation example

Second depressive episode this year. PHQ-9 today 16 (moderately severe). Low mood, anhedonia, early-morning waking, impaired concentration at work. No suicidal ideation on direct questioning. Restarted sertraline 50 mg; CBT referral.

Suggested:

F33.1

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FactsContext extracts clinical facts first: diagnoses, symptoms, negatives, findings, test results, medications, and plan decisions.

Raw facts stay usable

The clinician can read and reuse the extracted medical context directly, independent of the generated note.

Built for review

AI suggestions are not a substitute for clinician judgment, payer rules, local coding policy, or the official code set.

FAQ

F32.9 or F32.A — which unspecified code?

F32.9 is unspecified major depressive disorder (MDD criteria documented, severity not stated). F32.A is depression NOS — the word "depression" without documented MDD criteria.

When does depression become "recurrent" (F33.-)?

After at least one prior documented depressive episode with a period of remission between episodes.

Can AI suggest severity-specific depression codes?

Yes — Notat extracts symptoms, screening scores, and episode history as clinical facts and proposes severity-specific codes with the supporting evidence for your review.

Related ICD-10 guides

Keep moving through the condition hub, or open the general medical coding guide for more coding systems and extractors.

Medical coding hub