ICD-10 L43.2
Billable / SpecificLichenoid drug reaction
About ICD-10-CM L43.2
ICD-10-CM code L43.2 represents Lichenoid drug reaction. This is a billable/specific code in the Skin and Subcutaneous Tissue chapter (block L43). The 2026 edition of ICD-10-CM L43.2 became effective on October 1, 2025.
Use Additional Code
When coding L43.2, 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 L43.2
Local Coverage Determinations (LCDs) from CMS MACs that list L43.2 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing L43.2.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but L43.2 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with L43.2
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 L43.2 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 |
|---|---|---|
| L43.2 | 6970 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To L43.2
Other codes in section L40-L45 (Papulosquamous disorders).
ICD-10 L43.2, Billing FAQ
Is ICD-10 code L43.2 billable? +
Yes, L43.2 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What ICD-9 codes does L43.2 map to? +
Per CMS GEMs, L43.2 maps to ICD-9 codes: 6970. 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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