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F34.0 Cyclothymic disorder

ICD-10-CM · CMS code reference

F34.0 is cyclothymic disorder, one of the persistent mood disorders. Records may also call it cyclothymia, cyclothymic personality, cycloid personality, or affective personality disorder.

Coding notes

From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.

Also covers

  • Affective personality disorder
  • Cycloid personality
  • Cyclothymia
  • Cyclothymic personality

Related codes

Common questions

Is F34.0 a billable code?

Yes. F34.0 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.

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