F39: Unspecified mood [affective] disorder

Billable ICD-10-CM code, FY2027

What ICD-10-CM says

Includes

  • Affective psychosis NOS

What F39 covers

F39 is for a mood disorder that the record does not describe further. It includes affective psychosis NOS. It is a three-character code with no subdivisions.

Psychiatry, behavioral health and primary care use it, often early in an evaluation. Depression NOS is F32.A, bipolar disorder unspecified is F31.9, and persistent mood disorders such as dysthymia and cyclothymia are in F34.-.

Billing and coding notes

F39 is billable but very general. If the clinician documents depression, bipolar disorder or another named mood disorder, code that instead.

Other diagnoses the clinician documents, such as an anxiety disorder, can be coded with F39. Once the record supports a named mood disorder, later claims should move to that code rather than keep F39 as a placeholder.

Questions about F39

What is the difference between F39 and F32.A?

F39 is a mood disorder with no type documented. F32.A is depression, unspecified. If the note says depression, F32.A is more accurate.

Is F39 billable?

Yes. F39 is a complete three-character code.

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ICD-10-CM in CloudMedico

In CloudMedico, a visit's diagnoses come from the current ICD-10-CM list. For US practices, the visit flags a code that isn't billable on its date, and a superbill made from an invoice carries the visit's diagnoses.

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ICD-10-CM FY2027, code descriptions file, CDC National Center for Health Statistics, effective October 1, 2026. ICD-10-CM is in the public domain.

Official text: ICD-10-CM FY2027 tabular list, CDC National Center for Health Statistics, effective October 1, 2026. The summary, notes and answers on this page are CloudMedico's.