ICD-10 code for dissociative disorder

The ICD-10-CM code for dissociative disorder is F44.9 (Dissociative and conversion disorder, unspecified). The official index lists 9 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on F44.9.

Within F44, choose F44.9 (Dissociative and conversion disorder, unspecified) only when documentation doesn't support a more specific option: dissociative amnesia (F44.0), dissociative fugue (F44.1), dissociative stupor (F44.2), conversion disorder with motor symptom or deficit (F44.4), conversion disorder with seizures or convulsions (F44.5), conversion disorder with sensory symptom or deficit (F44.6), conversion disorder with mixed symptom presentation (F44.7) and other dissociative and conversion disorders (F44.8).

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.