ICD10BillableValid for clinical use

ICD-10 Code F42.4: Excoriation (skin-picking) disorder

F42.4 is a billable ICD-10 diagnosis code used to classify Excoriation (skin-picking) disorder in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Mental, Behavioral and Neurodevelopmental disorders (F01-F99).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Mental, Behavioral and Neurodevelopmental disorders (F01-F99).

When is it used?

  • May be used when a clinician documents excoriation (skin-picking) disorder in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
5Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
block
F40-F48Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders
category
F42Obsessive-compulsive disorder
currentF42

Official coding notes

Excludes1 (do not code together)
  • factitial dermatitis (L98.1)
  • other specified behavioral and emotional disorders with onset usually occurring in early childhood and adolescence (F98.8)

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

Dermatologist

Coding guidelines

Common synonyms

Excoriation (skin-picking) disorderExcoriationExcoriation skin-picking disorder

Frequently asked questions

Code details

CodeF42.4
SystemICD10
Display nameExcoriation (skin-picking) disorder
ChapterMental, Behavioral and Neurodevelopmental disorders (F01-F99)
BlockAnxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Disorder(of)Excoriation(traumatic)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code F42.4 for Excoriation (skin-picking) disorder | HealthAssure