All ICD10 Codes

L40-L45

Non-Billable
ChapterL00–L99
Rankblock
Official Description

Papulosquamous disorders (L40-L45)

Use a more specific code (2 billable, 4 non-billable)
L40Psoriasishas subcodesL41Parapsoriasishas subcodesL42Pityriasis roseaL43Lichen planushas subcodesL44Other papulosquamous disordershas subcodesL45Papulosquamous disorders in diseases classified elsewhere
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 12: Diseases of the Skin and Subcutaneous Tissue (L00-L99).

CH12 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • lipomelanotic reticulosis (I89.8)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • viral warts (B07.-)

Clinical Hierarchy

BillableHas subcodes
CH12Diseases of the skin and subcutaneous tissue (L00-L99)
L40-L45Papulosquamous disorders (L40-L45)Not billable
L40PsoriasisSubcodes
L41ParapsoriasisSubcodes
L42Pityriasis roseaBillable
L43Lichen planusSubcodes
L44Other papulosquamous disordersSubcodes
L45Papulosquamous disorders in diseases classified elsewhereBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to L40-L45:

chapterCH12
Diseases of the skin and subcutaneous tissue (L00-L99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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