F33.40 – Major depressive disorder, recurrent, in remission, unspecified

ICD-10-CM 2027 diagnosis code · Mood [affective] disorders

Billable code

ICD-10-CM code F33.40

Code: F33.40 (claims format: F3340)
Description: Major depressive disorder, recurrent, in remission, unspecified
Short description: Major depressive disorder, recurrent, in remission, unsp
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 5. Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
Block: F30-F39 Mood [affective] disorders
Parent codes: F33 › F33.4

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

F33 – Major depressive disorder, recurrent

Includes:

recurrent episodes of depressive reaction
recurrent episodes of endogenous depression
recurrent episodes of major depression
recurrent episodes of psychogenic depression
recurrent episodes of reactive depression
recurrent episodes of seasonal affective disorder
recurrent episodes of seasonal depressive disorder
recurrent episodes of vital depression

Excludes1 (not coded here):

bipolar disorder (F31.-)
manic episode (F30.-)

Index terms for F33.40

Entries in the ICD-10-CM alphabetic index that lead to this code:

Disorder, depressive, recurrent, in remission

Related codes in F33.4

Frequently asked questions

What is ICD-10 code F33.40?

F33.40 is the ICD-10-CM code for major depressive disorder, recurrent, in remission, unspecified, in the block F30-F39 (Mood [affective] disorders).

Is F33.40 a billable code?

Yes. F33.40 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does F33.40 belong to?

It belongs to category F33 – Major depressive disorder, recurrent.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.