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ICD-10 Code L40.5: Arthropathic psoriasis

L40.5 is an ICD-10 diagnosis entry used to group records related to Arthropathic psoriasis. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the skin and subcutaneous tissue (L00-L99).

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the skin and subcutaneous tissue (L00-L99).

When is it used?

  • May be used when a clinician documents arthropathic psoriasis in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
  • This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter
12Diseases of the skin and subcutaneous tissue (L00-L99)
block
L40-L45Papulosquamous disorders
category
L40Psoriasis
currentL40

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Related specialists

Dermatologist

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
L40.5
Replacement codes
L40.50 — Arthropathic psoriasis, unspecifiedL40.51 — Distal interphalangeal psoriatic arthropathyL40.52 — Psoriatic arthritis mutilansL40.53 — Psoriatic spondylitisL40.54 — Psoriatic juvenile arthropathyL40.59 — Other psoriatic arthropathy

Common synonyms

Arthropathic psoriasis

Frequently asked questions

Code details

CodeL40.5
SystemICD10
Display nameArthropathic psoriasis
ChapterDiseases of the skin and subcutaneous tissue (L00-L99)
BlockPapulosquamous disorders

Flags

BillableNo
Valid clinical useNo

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.