ICD-10 F42.4
Billable / SpecificExcoriation (skin-picking) disorder
About ICD-10-CM F42.4
ICD-10-CM code F42.4 represents Excoriation (skin-picking) disorder. This is a billable/specific code in the Mental, Behavioral, and Neurodevelopmental chapter (block F42). The 2026 edition of ICD-10-CM F42.4 became effective on October 1, 2025.
Type 1 Excludes
Pure excludes, these codes can never be coded together with F42.4. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- factitial dermatitis (L98.1)
- other specified behavioral and emotional disorders with onset usually occurring in early childhood and adolescence (F98.8)
Medicare LCD Coverage for F42.4
Local Coverage Determinations (LCDs) from CMS MACs that list F42.4 as a covered diagnosis.
Showing top 10 of 271 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing F42.4.
5 Medicare
CPT Codes Commonly Billed with F42.4
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Convert F42.4 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| F42.4 | 3063 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To F42.4
Other codes in section F40-F48 (Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders).
ICD-10 F42.4, Billing FAQ
Is ICD-10 code F42.4 billable? +
Yes, F42.4 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What codes are Type 1 Excludes for F42.4? +
Type 1 Excludes (never code together with F42.4): factitial dermatitis (L98.1); other specified behavioral and emotional disorders with onset usually occurring in early childhood and adolescence (F98.8)
What ICD-9 codes does F42.4 map to? +
Per CMS GEMs, F42.4 maps to ICD-9 codes: 3063. Useful for legacy data review and historical claim analysis.
Get the full PayerReady toolkit
Free access to CPT/ICD-10 lookup, denial appeals, fee comparator, and claim auditing with credentialing enrollment.
Start free →Run this code through our claim audit tool
Check NCCI bundling, MUE limits, and modifier logic before submission.
Try the auditor →Did this page help?
Quick signal so we know what to improve.
If you want a code reference page that doesn't exist yet, email coding@payerready.com.
Tell us what's missing or wrong: coding@payerready.com. We respond within 5 business days.
Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
Powered by 11K CPT · 98K ICD-10 · 860K MPFS rates · 4.5M NCCI edits · 9.5M NPIs. Our data methodology · About our coding team