Unspecified mood [affective] disorder (F39) ICD-10-CM
The F39 code range covers unspecified mood [affective] disorder with 1 ICD-10-CM diagnosis codes. 1 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Affective psychosis NOS
Codes in the F39 Range 1 codes · 1 billable
- F39 Unspecified mood [affective] disorder
About the F39 Code Range
The ICD-10 code F39 is used to identify an unspecified mood [affective] disorder, covering mood conditions that lack a more precise diagnosis. This code is applicable when symptoms do not clearly match other specific mood disorders.
This code groups a range of mood-related conditions, including those induced by substances such as methamphetamine or synthetic cannabinoids, as well as varying severities from mild to severe mood disorders. Terms like affective psychosis, episodic mood disorder, and secondary mood disorder relate to F39, helping coders and clinicians classify complex or unclear mood disturbances. Whether the mood disorder involves psychotic features—mood-congruent or mood-incongruent—or is in full or partial remission, F39 is the designated code. Using this ICD-10 code for unspecified mood disorders ensures accurate documentation when the precise mood disorder type is not determined, which is critical for care planning and medical record clarity. This makes F39 essential when symptoms suggest a mood disturbance but do not align with other specific mood disorder codes.
Questions About This Page
How many billable codes are in the F39 range?
Of the 1 codes in this range, 1 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the F39 range classify?
The range classifies unspecified mood [affective] disorder. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
