2027 ICD-10-CM Diagnosis Code F39Unspecified mood [affective] disorder
ICD-10-CM Codes›F01–F99›F30-F39›F39
- Billable — Valid for Submission
- Not Chronic
F39 is a billable ICD-10-CM diagnosis code for unspecified mood [affective] disorder. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 885. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified mood disorders.
F39 no longer risk-adjusts for Medicare Advantage: it mapped to HCC 59 under the retired CMS-HCC V24 model through payment year 2025 but maps to no category in the live V28 model. It still risk-adjusts in the PACE (CMS-HCC V22) category 58, ESRD (V21) category 58, ESRD (V24) category 59, and RxHCC Part D (V08) category 132 for payment year 2027.
Code Identity
Code Classification
Medicare Risk Adjustment (HCC)Billing
F39 no longer risk-adjusts for Medicare Advantage: it maps to no payment category in the live CMS-HCC V28 model, although it still risk-adjusts in the other CMS models shown below.
Source: CMS Payment Year 2027 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Affective psychosis
- Amphetamine and/or amphetamine derivative-induced mood disorder
- Episodic mood disorder
- Mental disorder caused by methamphetamine
- Mild mood disorder
- Moderate mood disorder
- Mood disorder
- Mood disorder caused by methamphetamine
- Mood disorder during pregnancy
- Mood disorder in full remission
- Mood disorder in partial remission
- Psychological disorder during pregnancy
- Secondary mood disorder
- Severe mood disorder with psychotic features
- Severe mood disorder with psychotic features, mood-congruent
- Severe mood disorder with psychotic features, mood-incongruent
- Severe mood disorder without psychotic features
- Synthetic cannabinoid induced mood disorder
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to F39: its own notes plus those printed at Chapter 5. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- disorders of psychological development
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Affective psychosis NOS
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name F39, its category, or a range that includes it.
Excludes2 4
These codes carry an Excludes2 note naming F39: its condition is not part of those codes, and both may be reported when the patient has both.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Disorder (of) See Also: Disease;
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Mood Disorder
a category of psychiatric disorders which have as their most predominant feature a disturbance in mood.
Patient EducationClinical
Mood Disorders
Most people feel sad or irritable from time to time. They may say they're in a bad mood. A mood disorder is different. It affects a person's everyday emotional state. Nearly one in ten people aged 18 and older have mood disorders. These include depression and bipolar disorder (also called manic depression).
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert F39 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About F39Overview
What is the ICD-10 code for unspecified mood [affective] disorder?
The ICD-10-CM code for unspecified mood [affective] disorder is F39. It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is F39 (Unspecified mood [affective] disorder) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report unspecified mood [affective] disorder on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does F39 group to?
When unspecified mood [affective] disorder is the principal diagnosis on an inpatient stay, it groups to MS-DRG 885 (psychoses), which carries a relative weight of 1.3904. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of F39?
Under the General Equivalence Mappings, unspecified mood [affective] disorder converts to ICD-9-CM 296.90 (episodic mood disord NOS). The mapping is approximate, so confirm the match fits the documentation.
Does F39 risk-adjust for Medicare Advantage payment?
Not for Medicare Advantage. F39 mapped to HCC 59 in the retired CMS-HCC V24 model, which last determined payment in 2025, but it maps to no category in the live V28 model; see all codes that no longer risk-adjust. It still risk-adjusts in the PACE (CMS-HCC V22) category 58 (Major Depressive/Bipolar/and Paranoid Disorders), ESRD (V21) category 58 (Major Depressive/Bipolar/and Paranoid Disorders), ESRD (V24) category 59 (Major Depressive/Bipolar/and Paranoid Disorders), and RxHCC Part D (V08) category 132 (Depression).
