ICD-10-CM · Chapter 12 · L00–L99
L40
Psoriasis
Diseases of the skin and subcutaneous tissue
Heads up:this is a parent code. It's typically not directly billable — you need to drill down to a more specific child code (one with additional digits) to use on a claim.
Quick facts
- Code
- L40
- Type
- Category / header (non-billable)
- ICD-10-CM chapter
- Chapter 12 — Diseases of the skin and subcutaneous tissue
- Category
- L40
- Specificity
- 3 characters
How coders use this code
ICD-10-CM L40 is a category (header) for psoriasis. It is generally not reported directly on a claim — coders drill down to a more specific child code (one with additional characters) that matches the documentation. Use the related codes below to find the billable code that fits, and verify against the annual NCHS/CMS guidelines.
Related codes in L40
- L40.0Psoriasis vulgaris
- L40.1Generalized pustular psoriasis
- L40.2Acrodermatitis continua
- L40.3Pustulosis palmaris et plantaris
- L40.4Guttate psoriasis
- L40.5Arthropathic psoriasis
- L40.50Arthropathic psoriasis, unspecified
- L40.51Distal interphalangeal psoriatic arthropathy
- L40.52Psoriatic arthritis mutilans
- L40.53Psoriatic spondylitis
- L40.54Psoriatic juvenile arthropathy
- L40.59Other psoriatic arthropathy
- L40.8Other psoriasis
- L40.9Psoriasis, unspecified
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