F34.9 Persistent mood [affective] disorder, unspecified

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Risk adjustment (HCC)

• CMS-HCC V22: HCC 58 — Major Depressive, Bipolar, and Paranoid Disorders
• RxHCC V08: HCC 132 — Depression
• ESRD V24: HCC 59

MS-DRG index

Defines the logic of DRG(s) 885 in MDC 19.

Approximate ICD-9-CM (GEMs)

• 296.99 Other specified episodic mood disorder (approximate)

Code annotations containing back-references to F34.9

Back-references to F34

• Type 2 Excludes: F06.3 Mood disorder due to known physiological condition ("mood disorders, not due to known physiological condition or unspecified (F30-F39)")
• Type 2 Excludes: F90 Attention-deficit hyperactivity disorders ("mood [affective] disorders (F30-F39)")
• Type 2 Excludes: F91 Conduct disorders ("mood [affective] disorders (F30-F39)")
• Type 2 Excludes: F93.0 Separation anxiety disorder of childhood ("mood [affective] disorders (F30-F39)")

Diagnosis Index entries for F34.9

• Disorder (of) › emotional (persistent)
• Disorder (of) › mood › persistent
• Disorder (of) › persistent › affective (mood)

Nearby codes

• F34.0 Cyclothymic disorder
• F34.1 Dysthymic disorder
• F34.8 Other persistent mood [affective] disorders
• F34.81 Disruptive mood dysregulation disorder
• F34.89 Other specified persistent mood disorders
• F34.9 Persistent mood [affective] disorder, unspecified (this code)