ICD-10 R23.4
Billable / SpecificChanges in skin texture
About ICD-10-CM R23.4
ICD-10-CM code R23.4 represents Changes in skin texture. This is a billable/specific code in the Symptoms, Signs, and Abnormal Findings chapter (block R23). The 2026 edition of ICD-10-CM R23.4 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under R23.4. Per CMS ICD-10-CM Tabular 2026.
- Desquamation of skin
- Induration of skin
- Scaling of skin
Type 1 Excludes
Pure excludes, these codes can never be coded together with R23.4. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- epidermal thickening NOS (L85.9)
Medicare LCD Coverage for R23.4
Local Coverage Determinations (LCDs) from CMS MACs that list R23.4 as a covered diagnosis.
Showing top 10 of 65 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing R23.4.
2 Medicare
CPT Codes Commonly Billed with R23.4
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 R23.4 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 |
|---|---|---|
| R23.4 | 7828 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To R23.4
Other codes in section R20-R23 (Symptoms and signs involving the skin and subcutaneous tissue).
ICD-10 R23.4, Billing FAQ
Is ICD-10 code R23.4 billable? +
Yes, R23.4 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to R23.4? +
ICD-10 R23.4 includes: Desquamation of skin; Induration of skin; Scaling of skin.
What codes are Type 1 Excludes for R23.4? +
Type 1 Excludes (never code together with R23.4): epidermal thickening NOS (L85.9)
What ICD-9 codes does R23.4 map to? +
Per CMS GEMs, R23.4 maps to ICD-9 codes: 7828. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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