ICD-10 Code F42.4 – Excoriation (skin-picking) disorder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F42.4 – Excoriation (skin-picking) disorder
What it is
F42.4 identifies excoriation disorder, a condition marked by recurrent skin picking that causes lesions or tissue damage. Use it when the behavior is compulsive and not better explained by another medical or psychiatric condition.
Clinical signs
Typical findings include repeated picking at skin, visible excoriations, scabs, or scars, and distress or impairment related to the behavior. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly documents excoriation disorder, skin-picking disorder, or compulsive picking with self-inflicted skin injury. It may also apply when the clinician links the picking behavior to functional impairment or repeated failed attempts to stop. Check documentation if the cause is unclear.
Do not use for
Do not use F42.4 for ordinary scratching, isolated skin lesions, or picking due to a dermatologic rash without a diagnosed disorder. Do not assume it applies when documentation only mentions anxiety or habit behavior.
Coding tip
Confirm that the provider documents a disorder diagnosis, not just skin damage, before assigning F42.4.