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L40.0

L40.0: Psoriasis vulgaris

Billable / specific codeICD-10-CM

L40.0 is a billable, specific ICD-10-CM code for psoriasis vulgaris. It is valid for submission on a claim.

Check L40.0 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Nummular psoriasis
  • Plaque psoriasis

Risk adjustment

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

Medicare coverage

L40.0 is named in 12 Medicare coverage policies: 12 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A52423Billing and Coding: Infliximab and biosimilars
  • A52998Billing and Coding: Surgical Treatment of Nails
  • A55639Billing and Coding: Chemotherapy Agents for Non-Oncologic Conditions
  • A56416Billing and Coding: Assays for Vitamins and Metabolic Function

Alphabetic index entries that lead here

  • Psoriasis›nummular
  • Psoriasis›plaque
  • Psoriasis›vulgaris

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under L40

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.