ICD-10-CM F32.0

ICD-10 Code F32.0: Major depressive disorder, single episode, mild

F32.0 is the ICD-10-CM code for major depressive disorder, single episode, mild. Use it when the clinician's diagnosis is a first episode of major depression at mild severity. If the client has had a prior episode, the recurrent code F33.0 applies instead.

Official description
Major depressive disorder, single episode, mild
Billable
Yes
Parent category
F32 · Depressive episode
DSM-5-TR name
Major depressive disorder, single episode, mild

Verified against the FY2027 ICD-10-CM code set (CDC/NCHS and CMS), effective October 1, 2026 - September 30, 2027, on . Chapter 5: Mental, Behavioral and Neurodevelopmental disorders (F01-F99).

Coding notes for F32.0

  • Single episode only - a history of a previous major depressive episode moves the client to F33.-
  • Mild severity - move to F32.1 or F32.2 if severity increases, and document why
  • Once symptoms improve, the remission codes F32.4 (partial) and F32.5 (full) describe the current state

What to document for medical necessity

Payers look for a record that supports the diagnosis and the level of care. For depressive disorders that usually means:

  • The symptoms that support the diagnosis and how long they have been present
  • The current severity (mild, moderate, severe) and how you arrived at it - a scored measure such as the PHQ-9 helps
  • Whether this is a first episode or a recurrence, since that decides F32 versus F33
  • Functional impairment at work, school, home, or in relationships
  • Risk assessment, including suicidal ideation, at intake and when it changes
  • Treatment plan goals tied to the depressive symptoms you are treating

CPT codes often billed with F32.0

The ICD-10 code says why you are treating the client and the CPT code says what you did. These are the service codes most often paired with F32.0:

90791 · Psychiatric diagnostic evaluation (intake) 90834 · 45-minute individual psychotherapy 90837 · 60-minute individual psychotherapy 96127 · Brief emotional or behavioral assessment

Free templates for this diagnosis

Related ICD-10 codes

F32.1 · Major depressive disorder, single episode, moderate F32.2 · Major depressive disorder, single episode, severe without psychotic features F33.0 · Major depressive disorder, recurrent, mild F32.9 · Major depressive disorder, single episode, unspecified

Frequently asked questions

What is the difference between F32.0 and F33.0?

Both are mild major depressive disorder. F32.0 is a single episode and F33.0 is recurrent, meaning the client has had at least one earlier major depressive episode. The history you document decides which applies.

Can I bill psychotherapy with F32.0?

Yes. F32.0 is a billable ICD-10-CM code and is commonly reported with 90791 for the intake and 90832, 90834, or 90837 for ongoing sessions. Your documentation still has to show medical necessity for the level of care.

This page is a coding reference, not clinical, diagnostic, billing, or legal advice. The diagnosis is the treating clinician's call, and payer rules vary - always confirm against the current ICD-10-CM code set and official guidelines and your payer's policy. See the full mental health ICD-10 code list.