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2026 ICD-10-CM · F30-F39

Mood [affective] disorders

ICD-10 codes F30–F39 classify mood (affective) disorders — conditions that cause persistent changes in emotional state, energy, and activity. This category includes manic episodes, bipolar disorder, major depressive disorder (single and recurrent), dysthymia, and cyclothymia. Specify episode type, severity, and remission status to support accurate documentation, treatment planning, and reimbursement.

This reference is provided for billing and documentation guidance only. It is not medical advice. For clinical decision-making, consult the current CMS ICD-10-CM Official Guidelines for Coding and Reporting, and verify code applicability against the patient's documented clinical findings.

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