All ICD10 Codes

L43

Non-Billable
ChapterL00–L99
Rankcategory
Official Description

Lichen planus

Use a more specific code (6 billable)
L43.0Hypertrophic lichen planusL43.1Bullous lichen planusL43.2Lichenoid drug reactionL43.3Subacute (active) lichen planusL43.8Other lichen planusL43.9Lichen planus, unspecified
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.-)

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • lichen planopilaris (L66.1-)

Clinical Hierarchy

BillableHas subcodes
CH12Diseases of the skin and subcutaneous tissue (L00-L99)
L40-L45Papulosquamous disorders (L40-L45)
L43Lichen planusNot billable
L43.0Hypertrophic lichen planusBillable
L43.1Bullous lichen planusBillable
L43.2Lichenoid drug reactionBillable
L43.3Subacute (active) lichen planusBillable
L43.8Other lichen planusBillable
L43.9Lichen planus, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to L43:

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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