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L43.2

L43.2: Lichenoid drug reaction

Billable / specific codeICD-10-CM

L43.2 is a billable, specific ICD-10-CM code for lichenoid drug reaction. It is valid for submission on a claim.

Check L43.2 with the rest of the claim: free scrubber

Use additional code

Add a secondary code to capture the detail described below.

  • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Excludes1 inherited from the categories above L43.2

A category’s note binds every code beneath it.

Written on L43: Lichen planus

  • lichen planopilaris (L66.1-)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

  • Reaction›drug NEC›lichenoid

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under L43

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.