All ICD10 Codes

L51

Non-Billable
ChapterL00–L99
Rankcategory
Official Description

Erythema multiforme

Use a more specific code (6 billable)
L51.0Nonbullous erythema multiformeL51.1Stevens-Johnson syndromeL51.2Toxic epidermal necrolysis [Lyell]L51.3Stevens-Johnson syndrome-toxic epidermal necrolysis overlap syndromeL51.8Other erythema multiformeL51.9Erythema multiforme, 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.-)

L49-L54 Parent Instructions

Excludes1(Not coded here. Use a different code.)

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • staphylococcal scalded skin syndrome (L00)
  • Ritter's disease (L00)
Use Additional Code
  • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
  • code to identify associated manifestations, such as:
  • arthropathy associated with dermatological disorders (M14.8-)
  • conjunctival edema (H11.42)
  • conjunctivitis (H10.22-)
  • corneal scars and opacities (H17.-)
  • corneal ulcer (H16.0-)
  • edema of eyelid (H02.84-)
  • inflammation of eyelid (H01.8-)
  • keratoconjunctivitis sicca (H16.22-)
  • mechanical lagophthalmos (H02.22-)
  • stomatitis (K12.-)
  • symblepharon (H11.23-)
  • code to identify percentage of skin exfoliation (L49.-)

Clinical Hierarchy

BillableHas subcodes
CH12Diseases of the skin and subcutaneous tissue (L00-L99)
L49-L54Urticaria and erythema (L49-L54)
L51Erythema multiformeNot billable
L51.0Nonbullous erythema multiformeBillable
L51.1Stevens-Johnson syndromeBillable
L51.2Toxic epidermal necrolysis [Lyell]Billable
L51.3Stevens-Johnson syndrome-toxic epidermal necrolysis overlap syndromeBillable
L51.8Other erythema multiformeBillable
L51.9Erythema multiforme, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to L51:

blockL49-L54
Urticaria and erythema (L49-L54)
View context instructions
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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