F42.4 Excoriation (skin-picking) disorder

Billable ICD-10-CM code, FY2026.

Excludes1 (never code together)

• factitial dermatitis (L98.1)
• other specified behavioral and emotional disorders with onset usually occurring in early childhood and adolescence (F98.8)

Applies from F42 Obsessive-compulsive disorder

Excludes2 (not included here)

• obsessive-compulsive personality (disorder) (F60.5)
• obsessive-compulsive symptoms occurring in depression (F32.-, F33.-)
• obsessive-compulsive symptoms occurring in schizophrenia (F20.-)

Risk adjustment (HCC)

• RxHCC V08: HCC 133 — Anxiety and Other Psychiatric Disorders

MS-DRG index

Defines the logic of DRG(s) 882 in MDC 19.

Approximate ICD-9-CM (GEMs)

• 306.3 Skin disorder arising from mental factors (approximate)

Code annotations containing back-references to F42.4

Back-references to F42.4

• Type 1 Excludes: L98.1 Factitial dermatitis ("Excoriation (skin-picking) disorder (F42.4)")

Back-references to F42

• Type 2 Excludes: F60.5 Obsessive-compulsive personality disorder ("obsessive-compulsive disorder (F42.-)")
• Type 2 Excludes: F93.0 Separation anxiety disorder of childhood ("nonpsychotic mental disorders (F40-F48)")
• Type 2 Excludes: F98 Other behavioral and emotional disorders with onset usually occurring in childhood and adolescence ("obsessive-compulsive disorder (F42.-)")
• Type 2 Excludes: F98.4 Stereotyped movement disorders ("compulsions in obsessive-compulsive disorder (F42.-)")
• Type 1 Excludes: R46.81 Obsessive-compulsive behavior ("obsessive-compulsive disorder (F42.-)")

Diagnosis Index entries for F42.4

• Disorder (of) › skin › picking
• Excoriation (traumatic) › skin picking disorder

Nearby codes

• F42 Obsessive-compulsive disorder
• F42.2 Mixed obsessional thoughts and acts
• F42.3 Hoarding disorder
• F42.4 Excoriation (skin-picking) disorder (this code)
• F42.8 Other obsessive-compulsive disorder
• F42.9 Obsessive-compulsive disorder, unspecified