L40 ICD-10-CM Code: Psoriasis
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
L40Psoriasis
ICD-10-CM diagnosis code · United States clinical modification
Where L40 sits
- 1
Chapter 12
Diseases of the skin and subcutaneous tissue (L00-L99)
- 2
Section
Papulosquamous disorders (L40-L45)
- 3
Category L40
Psoriasis
- 4
Code L40
Psoriasis
Codes under L40
L40 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Notes for this code
Inclusion terms
No inclusion terms are listed for L40.
Code first
No “code first” instruction is listed for L40.
Use additional code
No “use additional code” instruction is listed for L40.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for L40.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for L40.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code L40 mean?
L40 is the FY 2027 U.S. ICD-10-CM code for “Psoriasis.”
Is L40 a billable or specific ICD-10-CM code?
No. L40 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is L40 located in ICD-10-CM?
L40 is listed in Chapter 12, Diseases of the skin and subcutaneous tissue (L00-L99), within Papulosquamous disorders (L40-L45) (L40–L45), under category L40, Psoriasis.
What coding notes are listed for L40?
No inclusion terms are listed for L40 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.