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Compare/F44 vs F45

F44 vs F45

F44 (Dissociative and conversion disorders) compared with F45 (Somatoform disorders), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).

Can these codes be reported together?

Yes, when both are documented. F45 carries an Excludes2 note covering F44: “dissociative and conversion disorders (F44.-)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

Side by side

F44Dissociative and conversion disordersF45Somatoform disorders
Billing statusNon-billable header

Report instead: F44.0, F44.1, F44.2, F44.4, F44.5

Non-billable header

Report instead: F45.0, F45.1, F45.20, F45.21, F45.22

ClassificationF01-F99 — Mental, Behavioral and Neurodevelopmental Disorders (F01-F99)F01-F99 — Mental, Behavioral and Neurodevelopmental Disorders (F01-F99)
DefinitionDissociative and conversion disorders is a non-billable ICD-10-CM category code (F44).Somatoform disorders is a non-billable ICD-10-CM category code (F45).
Includes
conversion hysteria
conversion reaction
hysteria
hysterical psychosis
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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources