F42.4 Excoriation (skin-picking) disorder

BillableNo payment HCCChapter 5

Check coverage with this diagnosis

Instructional notes

Chapter 5

Excludes2Not included here: the patient may have both; report both when both are present.

symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Includes

disorders of psychological development

F42

Excludes2Not included here: the patient may have both; report both when both are present.

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

This code

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.

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

Chapter 5: Mental, Behavioral and Neurodevelopmental disorders · F40-F48 Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.