L40.0 ICD-10-CA code: Psoriasis vulgaris
L40.0 is the ICD-10-CA code for “Psoriasis vulgaris” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
L40.0Psoriasis vulgaris
ICD-10-CA · Canada · Also written L400
Index terms
Entries in CIHI’s alphabetical index that lead to L40.0. Searching the index by the condition the note names is how coders reach this code.
- Psoriasis, plaque
- Psoriasis, nummular
- Psoriasis, vulgaris
Notes for L40.0
As CIHI prints them, with any note L40.0 takes from the headings above it.
Includes
- Nummular psoriasisPlaque psoriasis
Excludes
Conditions classified elsewhere.
- Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)lipomelanotic reticulosis (I89.8)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)systemic connective tissue disorders (M30-M36)From Chapter 12: Diseases of the skin and subcutaneous tissue (L00-L99)
Where L40.0 sits
- 1ChapterChapter 12: Diseases of the skin and subcutaneous tissue (L00-L99)
- 2Block L40-L45Papulosquamous disorders
- 3Category L40Psoriasis
- 4Valid code L40.0Psoriasis vulgaris
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does ICD-10-CA code L40.0 mean?
L40.0 is the ICD-10-CA code for “Psoriasis vulgaris” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is L40.0 in ICD-10-CA?
L40.0 sits under L40 Psoriasis, within L40-L45 Papulosquamous disorders, within Chapter 12: Diseases of the skin and subcutaneous tissue (L00-L99).
What coding notes apply to L40.0?
ICD-10-CA lists Includes, Excludes notes for L40.0, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.