ICD-10-CM 2027
ICD-10 code for Hysterical fit
From the official ICD-10-CM alphabetic index entry “Fit › hysterical”. Page updated September 29, 2026.
About coding Hysterical fit
The ICD-10-CM code for Hysterical fit is F44.5 (Conversion disorder with seizures or convulsions).
Within F44 (dissociative and conversion disorders), F44.5 is specifically for conversion disorder with seizures or convulsions. Related codes cover dissociative amnesia (F44.0), dissociative fugue (F44.1), dissociative stupor (F44.2), conversion disorder with motor symptom or deficit (F44.4), conversion disorder with sensory symptom or deficit (F44.6), conversion disorder with mixed symptom presentation (F44.7), other dissociative and conversion disorders (F44.8) and dissociative and conversion disorder, unspecified (F44.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 880 (Acute Adjustment Reaction and Psychosocial Dysfunction, relative weight 0.9306), in MDC 19 (Mental Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about Hysterical fit ICD-10 codes
What is the ICD-10 code for Hysterical fit?
- F44.5 — Conversion disorder with seizures or convulsions.
Is F44.5 billable?
- Yes. F44.5 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F44.5 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F44.5 as a principal diagnosis.
Is F44.5 a CC or MCC?
- No. F44.5 is neither a CC nor an MCC under MS-DRG v44.0.