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F44.9

Dissociative and conversion disorder, unspecified

Billable FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 8 more specific codes sit alongside it. Worth checking whether the documentation supports one of them.
Exclusions 2 never code together
F44code
Excludes2
  • malingering [conscious simulation] (Z76.5)Z76.5
F01-F99chapter
Excludes2
  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)R00-R99

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 6
F44.9code
Inclusion terms
  • Dissociative disorder NOS
F44code
Includes
  • conversion hysteria
  • conversion reaction
  • hysteria
  • hysterical psychosis
F01-F99chapter
Includes
  • disorders of psychological development
Index entries leading here 11
  • Psychosis, psychotic F29
    • acute (transient) F23
    • hysterical (acute) F44.9
  • Attack, attacks
  • Neurosis, neurotic F48.9
  • Reaction — see also Disorder
  • Conversion hysteria, neurosis or reaction F44.9
  • Disorder (of) — see also Disease
  • State (of)
  • Dissociative reaction, state F44.9
  • Psychoneurosis, psychoneurotic — see also Neurosis
  • Hysteria, hysterical (conversion) (dissociative state) F44.9
  • Substitution disorder F44.9
Alongside this code 8 same parent — F44
Additional references
AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

RX08HCC133

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable
yes
Code set
FY2026
Parent
F44
Block
F40-F48
Siblings
8

Present FY2024–FY2027.