L40

ICD-10Non-billable category

Psoriasis

Official ICD-10-CM descriptor (FY2026)

Psoriasis

L40 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.

More specific codes under L40

L40.0Psoriasis vulgaris
L40.1Generalized pustular psoriasis
L40.2Acrodermatitis continua
L40.3Pustulosis palmaris et plantaris
L40.4Guttate psoriasis
L40.5Arthropathic psoriasiscategory
L40.8Other psoriasis
L40.9Psoriasis, unspecified

Where this code sits

Chapter: 12. Diseases of the skin and subcutaneous tissue (L00-L99)
Block: Papulosquamous disorders (L40-L45)

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.