DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

F44 Dissociative and conversion disorders

  • Header · not billable

F44 is not billable. The category heads 10 billable codes in FY2027, grouped under 9 subdivisions.

Index → code

  • Blocq's disease → F44.4
  • Hysteroepilepsy → F44.5
  • Postures, hysterical → F44.2

Where it sits

  1. Chapter 5 Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
  2. F40-F48 Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48)
  3. F44 Dissociative and conversion disorders
Billable codes
10
Subdivisions
9
CC / MCC codes
0 / 0
HCC V28 codes
3
New FY2027
0
Index entries
175

Codes in F44

  1. F44.0
    Dissociative amnesia
    Billable153
    Excludes1 4, Excludes2 3

    Excludes1

    • amnesia NOS (R41.3) R41.3
    • anterograde amnesia (R41.1) R41.1
    • dissociative amnesia with dissociative fugue (F44.1) F44.1
    • retrograde amnesia (R41.2) R41.2

    Excludes2

    • alcohol-or other psychoactive substance-induced amnestic disorder (F10, F13, F19 with .26, .96) F10 F13 F19
    • amnestic disorder due to known physiological condition (F04) F04
    • postictal amnesia in epilepsy (G40.-) G40
  2. F44.1
    Dissociative fugue
    Billable153
    Inclusion terms 1, Excludes2 1

    Inclusion terms

    • Dissociative amnesia with dissociative fugue

    Excludes2

    • postictal fugue in epilepsy (G40.-) G40
  3. F44.2
    Dissociative stupor
    Billable
    Excludes1 2, Excludes2 3

    Excludes1

    • catatonic stupor (R40.1) R40.1
    • stupor NOS (R40.1) R40.1

    Excludes2

    • catatonic disorder due to known physiological condition (F06.1) F06.1
    • depressive stupor (F32, F33) F32 F33
    • manic stupor (F30, F31) F30 F31
  4. F44.4
    Conversion disorder with motor symptom or deficit
    Billable
    Inclusion terms 7

    Inclusion terms

    • Conversion disorder with abnormal movement
    • Conversion disorder with speech symptoms
    • Conversion disorder with swallowing symptoms
    • Conversion disorder with weakness/paralysis
    • Dissociative motor disorders
    • Psychogenic aphonia
    • Psychogenic dysphonia
  5. F44.5
    Conversion disorder with seizures or convulsions
    Billable
    Inclusion terms 2

    Inclusion terms

    • Conversion disorder with attacks or seizures
    • Dissociative convulsions
  6. F44.6
    Conversion disorder with sensory symptom or deficit
    Billable
    Inclusion terms 4

    Inclusion terms

    • Conversion disorder with anesthesia or sensory loss
    • Conversion disorder with special sensory symptoms
    • Dissociative anesthesia and sensory loss
    • Psychogenic deafness
  7. F44.7
    Conversion disorder with mixed symptom presentation
    Billable
  8. F44.8
    Other dissociative and conversion disorders
    Header
  9. F44.81
    Dissociative identity disorder
    Billable153
    Inclusion terms 1

    Inclusion terms

    • Multiple personality disorder
  10. F44.89
    Other dissociative and conversion disorders
    Billable
    Inclusion terms 4

    Inclusion terms

    • Ganser's syndrome
    • Psychogenic confusion
    • Psychogenic twilight state
    • Trance and possession disorders
  11. F44.9
    Dissociative and conversion disorder, unspecified
    Billable
    Inclusion terms 1

    Inclusion terms

    • Dissociative disorder NOS

Sources of each column.

Instructions

At F44

Includes

  • conversion hysteria
  • conversion reaction
  • hysteria
  • hysterical psychosis

Excludes2

  • malingering [conscious simulation] (Z76.5) Z76.5

Notes that also apply

Chapter 5 instructions (Includes 1, Excludes2 1): printed on the chapter 5 page.

Index entries

  • Catalepsy (hysterical) → F44.2
  • Postures, hysterical → F44.2
  • Abasia (-astasia) (hysterical) → F44.4
  • Astasia (-abasia) (hysterical) → F44.4
  • Bergeron's disease (hysterical chorea) → F44.4
  • Blocq's disease → F44.4
  • Camptocormia (hysterical) → F44.4
  • Hysteroepilepsy → F44.5
  • Dream state, hysterical → F44.89
  • Ganser's syndrome (hysterical) → F44.89
  • Conversion hysteria, neurosis or reaction → F44.9
  • Dissociative reaction, state → F44.9
  • Hysteria, hysterical (conversion) (dissociative state) → F44.9
  • Substitution disorder → F44.9
  • Amnesiadissociative → F44.0
  • Amnesiahysterical → F44.0
  • Amnesiapsychogenic → F44.0
  • Fuguedissociative → F44.1
  • Fuguehysterical (dissociative) → F44.1
  • Stupor (catatonic)dissociative → F44.2
  • Stupor (catatonic)psychogenic (anergic) → F44.2
  • Aphonia (organic)hysterical → F44.4
  • Aphonia (organic)psychogenic → F44.4
  • Asthenia, asthenichysterical → F44.4
  • Ataxia, ataxy, ataxichysterical → F44.4
  • Ataxia, ataxy, ataxicnonorganic origin → F44.4
  • Ataxia, ataxy, ataxicpsychogenic → F44.4
  • Bentback (hysterical) → F44.4
  • Chorea (chronic) (gravis) (posthemiplegic) (senile) (spasmodic)hysterical → F44.4
  • Contraction(s), contracture, contractedhysterical → F44.4
  • Disorder (of)psychomotor NEC → F44.4
  • Disturbance(s)psychomotor → F44.4
  • Dysbasiahysterical → F44.4
  • Dysbasianonorganic origin → F44.4
  • Dysbasiapsychogenic → F44.4
  • Dyskinesiahysterical → F44.4
  • Dyskinesianonorganic origin → F44.4
  • Dyskinesiapsychogenic → F44.4
  • Dysphoniafunctional → F44.4
  • Dysphoniahysterical → F44.4

135 more, longer entries are not listed; the search box finds them by word.

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy