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ICD-10-CM Code F44.9
Dissociative and conversion disorder, unspecified

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

F44.9 is a billable ICD code used to specify a diagnosis of dissociative and conversion disorder, unspecified. A 'billable code' is detailed enough to be used to specify a medical diagnosis.

The ICD code F449 is used to code Dissociation (psychology)

In psychology, the term dissociation describes a wide array of experiences from mild detachment from immediate surroundings to more severe detachment from physical and emotional experience. The major characteristic of all dissociative phenomena involves a detachment from reality, rather than a loss of reality as in psychosis.

Specialty: Psychiatry
ICD 9 Code: 300.12

A college partygoer dissociates from the social and musical stimuli around him.

Source: Wikipedia

Coding Notes for F44.9 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.
Dissociative disorder NOS

MS-DRG Mapping

  • DRG Group #880 - Acute adjustment reaction and psychosocial dysfunction.

ICD-10-CM Alphabetical Index References for 'F44.9 - Dissociative and conversion disorder, unspecified'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code F44.9. Click on any term below to browse the alphabetical index.

Substitution disorder (F44.9)
Hysteria, hysterical(conversion) (dissociative state) (F44.9)
Dissociative reaction, state (F44.9)
Conversion hysteria, neurosis or reaction (F44.9)


Dissociative disorder or reaction, unspecified (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 F44.9 and a single ICD9 code, 300.15 is an approximate match for comparison and conversion purposes.

Parent Code: F44 - Dissociative and conversion disorders

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/F449