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F44.4

F44.4Conversion disorder with motor symptom or deficit

Billable / specific codeICD-10-CM

F44.4 is a billable, specific ICD-10-CM code for conversion disorder with motor symptom or deficit. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • 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

Other codes that can never be billed with F44.4

These codes carry an Excludes1 note pointing at F44.4. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading F44.4 alone.

  • R25.1Tremor, unspecified
  • R49Voice and resonance disorders
  • R53.2Functional quadriplegia
  • G24.3Spasmodic torticollis
  • G82Paraplegia (paraparesis) and quadriplegia (quadriparesis)

Risk adjustment

F44.4 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

F44.4 is named in 26 Medicare coverage policies 25 listing it as supporting medical necessity, and 1 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
  • A56551Billing and Coding: Visual Fields Testing
  • A56619Billing and Coding: Nerve Conduction Studies and Electromyography
  • A56645Billing and Coding: Controlled Substance Monitoring and Drugs of Abuse Testing

How F44.4 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to F44.4.

  • Abasia(-astasia) (hysterical)
  • Astasia(-abasia) (hysterical)
  • Bergeron's disease(hysterical chorea)
  • Blocq's disease
  • Camptocormia(hysterical)
  • Aphoniahysterical
  • Aphoniapsychogenic
  • Asthenia, asthenichysterical
  • Ataxia, ataxy, ataxichysterical
  • Ataxia, ataxy, ataxicnonorganic origin
  • Ataxia, ataxy, ataxicpsychogenic
  • Bentback(hysterical)

Related codes at this level

Codes that share F44. If F44.4 is not quite right, the correct code is usually one of these.

Questions about F44.4

Is F44.4 a billable ICD-10-CM code?
Yes. F44.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does F44.4 sit in the tabular list?
Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.