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F42.4

F42.4: Excoriation (skin-picking) disorder

Billable / specific codeICD-10-CM

F42.4 is a billable, specific ICD-10-CM code for excoriation (skin-picking) disorder. It is valid for submission on a claim.

Check F42.4 with the rest of the claim: free scrubber

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

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

Excludes2 inherited from the categories above F42.4

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

Written on F42: Obsessive-compulsive disorder

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

Other codes that can never be billed with F42.4

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

  • L98.1Factitial dermatitis
  • R46.81Obsessive-compulsive behavior

Risk adjustment

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

Medicare coverage

F42.4 is named in 16 Medicare coverage policies: 14 listing it as supporting medical necessity, and 2 listing it as NOT covered. Which one applies depends on your Medicare contractor.

  • A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
  • A56865Billing and Coding: Psychiatric Inpatient Hospitalizationnot covered
  • A56614Billing and Coding: Psychiatric Inpatient Hospitalization
  • A56756Billing and Coding: Home Health - Psychiatric Care

Alphabetic index entries that lead here

  • Excoriation›skin picking disorder
  • Disorder›skin›picking

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under F42

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.