2026 ICD-10-CM Diagnosis Code F32.4

Code attributes

• Non-billable / Non-specific code
• Revised for ICD-10-CM 2026

Applicable to

• Single episode of agitated depression
• Single episode of depressive reaction
• Single episode of major depression
• Single episode of psychogenic depression
• Single episode of reactive depression
• Single episode of vital depression

Type 1 Excludes

• Bipolar disorder (F31.-)
• Manic episode (F30.-)
• Recurrent depressive disorder (F33.-)

Type 2 Excludes

• Adjustment disorder (F43.2)

Approximate synonyms

• Major depression
• Single-episode depression
• MDD, single episode
• Reactive depression

Code first

• If due to a known physiological condition, code that condition first (F06.31, F06.32)

Coding rules

• Specify severity — Mild, moderate, or severe — and whether psychotic features are present. Severity must match the documented symptom count and functional impairment.
• Use a validated scale — PHQ-9 or BDI-II scores at baseline and at each session provide objective severity documentation that supports the chosen ICD-10 code.
• Document remission carefully — Partial vs. full remission is its own code (F32.4, F32.5). Capture symptom-free duration in the note.
• Differentiate single vs. recurrent — If prior depressive episodes exist, use F33 (recurrent) instead of F32.

Includes

• Single episode of agitated depression
• Single episode of depressive reaction
• Single episode of major depression
• Single episode of psychogenic depression
• Single episode of reactive depression
• Single episode of vital depression