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ICD-10-CM Code F34.0
Cyclothymic disorder

Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
Mental Health
Mental Health Code
Indicates that the ICD code is referenced in DSM-5 (Diagnostic and Statistical Manual of Mental Disorders, Version 5)
| ICD-10 from 2011 - 2016

F34.0 is a billable ICD code used to specify a diagnosis of cyclothymic disorder. A 'billable code' is detailed enough to be used to specify a medical diagnosis.

The ICD code F340 is used to code Cyclothymia

Cyclothymia, also called cyclothymic disorder, is a type of chronic mood disorder widely considered to be a more chronic but milder or subthreshold form of bipolar disorder. Cyclothymia is characterized by numerous mood swings, with periods of hypomanic symptoms that do not meet criteria for a manic episode, alternating with periods of mild or moderate symptoms of depression that do not meet criteria for a major depressive episode.

Specialty: Psychiatry
MeSH Code: D003527
ICD 9 Code: 301.13
Source: Wikipedia

Coding Notes for F34.0 Info for medical coders on how to properly use this ICD-10 code

Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
Affective personality disorder
Cycloid personality
Cyclothymic personality

MS-DRG Mapping

  • DRG Group #883 - Disorders of personality and impulse control.

ICD-10-CM Alphabetical Index References for 'F34.0 - Cyclothymic disorder'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code F34.0. Click on any term below to browse the alphabetical index.

Cycloid personality (F34.0)
Cyclothymia (F34.0)
Cyclothymic personality (F34.0)


Affective personality disorder, unspecified (approximate match)
Cyclothymic disorder (approximate match)

This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code F34.0 and a single ICD9 code, 301.13 is an approximate match for comparison and conversion purposes.

Parent Code: F34 - Persistent mood [affective] disorders

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/F340