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ICD-10-CM Code F43.9
Reaction to severe stress, 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

F43.9 is a billable ICD code used to specify a diagnosis of reaction to severe stress, unspecified. A 'billable code' is detailed enough to be used to specify a medical diagnosis.

MS-DRG Mapping

  • DRG Group #882 - Neuroses except depressive.

Related Concepts SNOMET-CT

  • Symptoms of stress (finding)

ICD-10-CM Alphabetical Index References for 'F43.9 - Reaction to severe stress, unspecified'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code F43.9. Click on any term below to browse the alphabetical index.

Stress (F43.9)
Stress (F43.9) +


Unspecified adjustment reaction (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 F43.9 and a single ICD9 code, 309.9 is an approximate match for comparison and conversion purposes.

Parent Code: F43 - Reaction to severe stress, and adjustment disorders

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/F439