F44.9

F44.9: Dissociative and conversion disorder, unspecified

Billable / specific codeICD-10-CM

F44.9 is a billable, specific ICD-10-CM code for dissociative and conversion disorder, unspecified. It is valid for submission on a claim.

Check F44.9 with the rest of the claim: free scrubber

Inclusion terms

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

Dissociative disorder NOS

Excludes2 inherited from the categories above F44.9

Not part of this code, but both may be coded when both are present.

Written on F44: Dissociative and conversion disorders

malingering [conscious simulation] (Z76.5)

Other codes that can never be billed with F44.9

Their own Excludes1 notes name this code, so the conflict is not listed above.

R41Other symptoms and signs involving cognitive functions and awareness

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

F44.9 is named in 10 Medicare coverage policies: 9 listing it as supporting medical necessity, and 1 listing it as NOT covered. Which one applies depends on your Medicare contractor.

A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
A56619Billing and Coding: Nerve Conduction Studies and Electromyography
A56645Billing and Coding: Controlled Substance Monitoring and Drugs of Abuse Testing
A56756Billing and Coding: Home Health - Psychiatric Care

Alphabetic index entries that lead here

Conversion hysteria, neurosis or reaction
Dissociative reaction, state
Hysteria, hysterical(conversion) (dissociative state)
Substitution disorder
Attack, attacks›hysterical
Disorder›dissociative
Hysteria, hysterical›psychosis, acute
Neurosis, neurotic›conversion
Neurosis, neurotic›hysterical
Psychoneurosis, psychoneurotic›hysteria
Psychosis, psychotic›hysterical(acute)
Reaction›conversion

Code history

Unchanged in every release from FY2024 to FY2027.