ICD-10 L23.3
Billable / SpecificAllergic contact dermatitis due to drugs in contact with skin
About ICD-10-CM L23.3
ICD-10-CM code L23.3 represents Allergic contact dermatitis due to drugs in contact with skin. This is a billable/specific code in the Skin and Subcutaneous Tissue chapter (block L23). The 2026 edition of ICD-10-CM L23.3 became effective on October 1, 2025.
Type 2 Excludes
Not included here, the excluded code is not part of L23.3, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- dermatitis due to ingested drugs and medicaments (L27.0-L27.1)
Use Additional Code
When coding L23.3, also report these additional codes when applicable.
- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Medicare LCD Coverage for L23.3
Local Coverage Determinations (LCDs) from CMS MACs that list L23.3 as a covered diagnosis.
Showing top 10 of 175 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing L23.3.
5 Medicare
CPT Codes Commonly Billed with L23.3
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 95070 CMS LCD: Billing and Coding: Allergy Testing CMS LCD
- 95052 CMS LCD: Billing and Coding: Allergy Testing CMS LCD
- 95065 CMS LCD: Billing and Coding: Allergy Testing CMS LCD
- 95027 CMS LCD: Billing and Coding: Allergy Testing CMS LCD
- 95018 CMS LCD: Billing and Coding: Allergy Testing CMS LCD
- 82785 CMS LCD: Billing and Coding: Allergy Testing CMS LCD
- 95017 CMS LCD: Billing and Coding: Allergy Testing CMS LCD
- 95079 CMS LCD: Billing and Coding: Allergy Testing CMS LCD
- 0178U CMS LCD: Billing and Coding: Allergy Testing CMS LCD
- 95028 CMS LCD: Billing and Coding: Allergy Testing CMS LCD
Convert L23.3 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 |
|---|---|---|
| L23.3 | 6923 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To L23.3
Other codes in section L20-L30 (Dermatitis and eczema).
ICD-10 L23.3, Billing FAQ
Is ICD-10 code L23.3 billable? +
Yes, L23.3 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What codes are Type 2 Excludes for L23.3? +
Type 2 Excludes (may be coded together when both conditions exist): dermatitis due to ingested drugs and medicaments (L27.0-L27.1)
What CPT codes are commonly billed with L23.3? +
Procedures frequently paired with L23.3 include: 95070, 95052, 95065, 95027, 95018.
What ICD-9 codes does L23.3 map to? +
Per CMS GEMs, L23.3 maps to ICD-9 codes: 6923. 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 July 16, 2026.
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