ICD-10-CM Codes
F01-F99
F40-F48
F43-
2023 ICD-10-CM Diagnosis Code F43.0

2023 ICD-10-CM Diagnosis Code F43.0

Acute stress reaction

2016

2017

2018

2019

2020

2021

2022

2023

Billable/Specific Code

F43.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2023 edition of ICD-10-CM F43.0 became effective on October 1, 2022.
This is the American ICD-10-CM version of F43.0 - other international versions of ICD-10 F43.0 may differ.

Applicable To

Acute crisis reaction
Acute reaction to stress
Combat and operational stress reaction
Combat fatigue
Crisis state
Psychic shock

The following code(s) above F43.0 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to F43.0:

F01-F99
2023 ICD-10-CM Range F01-F99
Mental, Behavioral and Neurodevelopmental disorders
Includes
- disorders of psychological development
Type 2 Excludes
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
Mental, Behavioral and Neurodevelopmental disorders

Approximate Synonyms

Acute situational disturbance
Acute stress disorder
Fugue state due to stress reaction
Situational disturbance, acute
Stress reaction w fugue
Stress reaction, fugue

Clinical Information

A class of traumatic stress disorders that is characterized by the significant dissociative states seen immediately after overwhelming trauma. By definition it cannot last longer than 1 month, if it persists, a diagnosis of post-traumatic stress disorder (stress disorders, post-traumatic) is more appropriate.
An anxiety disorder precipitated by an experience of intense fear or horror while exposed to a traumatic (especially life-threatening) event. The disorder is characterized by dissociative symptoms; vivid recollections of the traumatic event; avoidance of stimuli associated with the traumatic event; and a constant state of hyperarousal for no more than one month.
Disorder characterized by the development of anxiety and dissociative symptoms as a result of exposure to a traumatic event. Symptoms last at least two days and no longer than four weeks.

ICD-10-CM F43.0 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):

880 Acute adjustment reaction and psychosocial dysfunction

Convert F43.0 to ICD-9-CM

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change

Code annotations containing back-references to F43.0:

Type 1 Excludes: R53.8
, R57

ICD-10-CM Diagnosis Code R53.8
Other malaise and fatigue
Type 1 Excludes
- combat exhaustion and fatigue (F43.0)
- congenital debility (P96.9)
- exhaustion and fatigue due to excessive exertion (T73.3)
- exhaustion and fatigue due to exposure (T73.2)
- exhaustion and fatigue due to heat (T67.-)
- exhaustion and fatigue due to pregnancy (O26.8-)
- exhaustion and fatigue due to recurrent depressive episode (F33)
- exhaustion and fatigue due to senile debility (R54)
ICD-10-CM Diagnosis Code R57
Shock, not elsewhere classified
Type 1 Excludes
- anaphylactic shock NOS (T78.2)
- anaphylactic reaction or shock due to adverse food reaction (T78.0-)
- anaphylactic shock due to adverse effect of correct drug or medicament properly administered (T88.6)
- anaphylactic shock due to serum (T80.5-)
- electric shock (T75.4)
- obstetric shock (O75.1)
- postprocedural shock (T81.1-)
- psychic shock (F43.0)
- shock complicating or following ectopic or molar pregnancy (O00-O07, O08.3)
- shock due to anesthesia (T88.2)
- shock due to lightning (T75.01)
- traumatic shock (T79.4)
- toxic shock syndrome (A48.3)
Type 2 Excludes: F41

ICD-10-CM Diagnosis Code F41
Other anxiety disorders
Type 2 Excludes
- anxiety in:
- acute stress reaction (F43.0)
- transient adjustment reaction (F43.2)
- neurasthenia (F48.8)
- psychophysiologic disorders (F45.-)
- separation anxiety (F93.0)

Diagnosis Index entries containing back-references to F43.0:

Battle exhaustion F43.0
Combat fatigue F43.0
Crisis
- emotional - see also Disorder, adjustment
  - acute reaction to stress F43.0
- acute reaction F43.0
- state F43.0 (acute reaction)
Delirium, delirious (acute or subacute) (not alcohol- or drug-induced) (with dementia) R41.0
ICD-10-CM Diagnosis Code R41.0
Disorientation, unspecified
Applicable To
Confusion NOS
Delirium NOS
- exhaustion F43.0
Disorder (of) - see also Disease
- acute
  - stress F43.0
- dissociative F44.9
  ICD-10-CM Diagnosis Code F44.9
  Dissociative and conversion disorder, unspecified
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  Applicable To
  Dissociative disorder NOS
  - brief reactive F43.0
- stress F43.9
  ICD-10-CM Diagnosis Code F43.9
  Reaction to severe stress, unspecified
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  Applicable To
  Trauma and stressor-related disorder, NOS
  Unspecified trauma and stressor-related disorder
  - acute F43.0
Disturbance(s) - see also Disease
- situational (transient) - see also Disorder, adjustment
  - acute F43.0
Exhaustion, exhaustive (physical NEC) R53.83
ICD-10-CM Diagnosis Code R53.83
Other fatigue
Applicable To
Fatigue NOS
Lack of energy
Lethargy
Tiredness
Type 2 Excludes
exhaustion and fatigue due to depressive episode (F32.-)
- battle F43.0
- delirium F43.0
- psychosis F43.0
Fatigue R53.83
ICD-10-CM Diagnosis Code R53.83
Other fatigue
Applicable To
Fatigue NOS
Lack of energy
Lethargy
Tiredness
Type 2 Excludes
exhaustion and fatigue due to depressive episode (F32.-)
- combat F43.0
Fugue R68.89
ICD-10-CM Diagnosis Code R68.89
Other general symptoms and signs
- reaction to exceptional stress F43.0 (transient)
Panic (attack) (state) F41.0
ICD-10-CM Diagnosis Code F41.0
Panic disorder [episodic paroxysmal anxiety]
Applicable To
Panic attack
Panic state
Type 1 Excludes
panic disorder with agoraphobia (F40.01)
- reaction to exceptional stress F43.0 (transient)
Psychosis, psychotic F29
ICD-10-CM Diagnosis Code F29
Unspecified psychosis not due to a substance or known physiological condition
Applicable To
Psychosis NOS
Unspecified schizophrenia spectrum and other psychotic disorder
Type 1 Excludes
mental disorder NOS (F99)
unspecified mental disorder due to known physiological condition (F09)
- exhaustive F43.0
Reaction - see also Disorder
- stress (severe) F43.9
  ICD-10-CM Diagnosis Code F43.9
  Reaction to severe stress, unspecified
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  Applicable To
  Trauma and stressor-related disorder, NOS
  Unspecified trauma and stressor-related disorder
  - acute F43.0 (agitation) ("daze") (disorientation) (disturbance of consciousness) (flight reaction) (fugue)
- combat and operational stress F43.0
- crisis, acute F43.0
Shellshock (current) F43.0
Shock R57.9
ICD-10-CM Diagnosis Code R57.9
Shock, unspecified
Applicable To
Failure of peripheral circulation NOS
- psychic F43.0
Situational
- disturbance (transient) - see Disorder, adjustment
  - acute F43.0
- reaction - see Disorder, adjustment
  - acute F43.0
State (of)
- agitated R45.1
  ICD-10-CM Diagnosis Code R45.1
  Restlessness and agitation
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  - acute reaction to stress F43.0
- crisis F43.0
Stupor (catatonic) R40.1
ICD-10-CM Diagnosis Code R40.1
Stupor
Applicable To
Catatonic stupor
Semicoma
Type 1 Excludes
catatonic schizophrenia (F20.2)
coma (R40.2-)
depressive stupor (F31-F33)
dissociative stupor (F44.2)
manic stupor (F30.2)
- reaction to exceptional stress F43.0 (transient)

ICD-10-CM Codes Adjacent To F43.0

F41.3 Other mixed anxiety disorders

F41.8 Other specified anxiety disorders

F41.9 Anxiety disorder, unspecified

F42 Obsessive-compulsive disorder

F42.2 Mixed obsessional thoughts and acts

F42.3 Hoarding disorder

F42.4 Excoriation (skin-picking) disorder

F42.8 Other obsessive-compulsive disorder

F42.9 Obsessive-compulsive disorder, unspecified

F43 Reaction to severe stress, and adjustment disorders

F43.0 Acute stress reaction

F43.1 Post-traumatic stress disorder (PTSD)

F43.10 Post-traumatic stress disorder, unspecified

F43.11 Post-traumatic stress disorder, acute

F43.12 Post-traumatic stress disorder, chronic

F43.2 Adjustment disorders

F43.20 Adjustment disorder, unspecified

F43.21 Adjustment disorder with depressed mood

F43.22 Adjustment disorder with anxiety

F43.23 Adjustment disorder with mixed anxiety and depressed mood

F43.24 Adjustment disorder with disturbance of conduct

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2023 ICD-10-CM Diagnosis Code F43.0

Acute stress reaction

Mental, Behavioral and Neurodevelopmental disorders

Other malaise and fatigue

Shock, not elsewhere classified

Other anxiety disorders

Disorientation, unspecified

Dissociative and conversion disorder, unspecified

Reaction to severe stress, unspecified

Other fatigue

Other fatigue

Other general symptoms and signs

Panic disorder [episodic paroxysmal anxiety]

Unspecified psychosis not due to a substance or known physiological condition

Reaction to severe stress, unspecified

Shock, unspecified

Restlessness and agitation

Stupor