ICD-10-CM diagnosis code
L40.3 Pustulosis palmaris et plantaris
- Billable
- Yes, a complete code (FY2026)
- Category
- L40 Psoriasis
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Other codes in L40
13 complete codes in this category.
- L40.0Psoriasis vulgaris
- L40.1Generalized pustular psoriasis
- L40.2Acrodermatitis continua
- L40.3Pustulosis palmaris et plantaris
- L40.4Guttate 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
Documentation tips
- Make sure the note supports every element of the title, “Pustulosis palmaris et plantaris”: each detail in it should be traceable to the history, examination or assessment.
- Code to the highest specificity the documentation supports. If a detail is missing from the note, add it to the note rather than choosing a less specific code by default.
- Check the Tabular List and official guidelines for instructional notes (“code first”, “use additional code”, Excludes1/Excludes2) that apply to L40.
The international WHO ICD-10 also has L40.3, with its inclusion and exclusion notes; titles and detail can differ from ICD-10-CM.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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