2026 ICD-10-CM Diagnosis Code F32.9Major depressive disorder, single episode, unspecified

ICD-10-CM Codes›F01–F99›F30-F39›F32

ICD-10-CM F32.9
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

F32.9 is a billable ICD-10-CM diagnosis code for major depressive disorder, single episode, unspecified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Depressive disorders.

Code Identity

ICD-10-CM Code
F32.9
Billable Status
Yes — Valid for Submission
Code Describes
Major depressive disorder, single episode, unspecified
Short Description
Major depressive disorder, single episode, unspecified
Same as the full description in the CMS dataset.
Parent Code
F32
Depressive episode

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF30-F39Mood [affective] disorders
CategoryF32Depressive episode
This CodeF32.9Major depressive disorder, single episode, unspecified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Alzheimer's disease with depressed mood
  • Arteriosclerotic dementia with depression
  • Atypical depressive disorder
  • Chronic major depressive disorder, single episode
  • Depressed mood
  • Depression annual review
  • Depression interim review
  • Depression requiring intervention
  • Depressive disorder in mother complicating childbirth
  • Depressive disorder in mother complicating pregnancy
  • Depressive symptoms due to primary psychotic disorder
  • Endogenous depression
  • Endogenous depression first episode
  • Major depression, melancholic type
  • Major depression, single episode
  • Major depressive disorder
  • Major depressive disorder in mother complicating childbirth
  • Major depressive disorder in mother complicating pregnancy
  • Major depressive disorder, single episode with atypical features
  • Major depressive disorder, single episode with melancholic features
  • Major depressive disorder, single episode with postpartum onset
  • Mental disorder in mother complicating childbirth
  • Mental disorder in mother complicating pregnancy
  • Minimal major depression
  • Minimal major depression single episode
  • Moderately severe major depression
  • Moderately severe major depression single episode
  • Perry syndrome
  • Postpartum depression
  • Presenile dementia with depression
  • Psychological sign or symptom
  • Psychological symptom
  • Symptoms of depression

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Major depression NOS

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Depression(acute) (mental)
      • major
    • Depression(acute) (mental)
      • psychogenic (reactive) (single episode)
    • Depression(acute) (mental)
      • reactive (psychogenic) (single episode)
    • Disorder(of)
      • depressive
        • major
    • Disorder(of)
      • depressive
        • major
          • single episode
    • Disorder(of)
      • psychogenic NOS
        • depressive
    • Episode
      • depressive
        • major
    • Reaction
      • depressive (single episode)

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MBD002
Depressive disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Endogenous Depression

    depression which is considered strictly biological.

Patient EducationClinical

Depression

Depression is more than a feeling of being sad or irritable for a few days. It's a serious mood disorder. As one of the most common mental disorders in the United States, depression can affect how you think, feel, and your everyday life.

The full article covers:

  • What is depression?
  • What are the different types of depression?
  • What causes depression?
  • Who is at risk of depression?
  • What are the symptoms of depression?
  • How is depression diagnosed?
  • What are the treatments for depression?
  • Can depression be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert F32.9 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
296.20 Depress psychosis-unspec
Approximate The match is approximate rather than exact.
ICD-9-CM
311 Depressive disorder NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About F32.9Overview

Is F32.9 (Depressive episode) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report major depressive disorder, single episode, unspecified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of F32.9?

Under the General Equivalence Mappings, major depressive disorder, single episode, unspecified converts to ICD-9-CM 296.20 (depress psychosis-unspec) and 311 (depressive disorder NEC). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.