2027 ICD-10-CM Diagnosis Code L93Lupus erythematosus

ICD-10-CM Codes›L00–L99›L80-L99›L93

ICD-10-CM L93
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

L93 is a non-billable ICD-10-CM category code for lupus erythematosus, so it cannot be submitted on claims. Use a more specific code from this category instead, such as L93.0, L93.1, and L93.2.

Code Identity

ICD-10-CM Code
L93
Billable Status
No — Non-Billable Category
Code Describes
Lupus erythematosus
Short Description
Lupus erythematosus
Same as the full description in the CMS dataset.
Chapter
L80-L99
Other disorders of the skin and subcutaneous tissue

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL80-L99Other disorders of the skin and subcutaneous tissue
CategoryL93Lupus erythematosus
This CodeL93Lupus erythematosus

Specific Coding for Lupus erythematosusOverview

Non-specific codes like L93 require more characters. Use one of these billable codes instead:

  • Use L93.0 for Discoid lupus erythematosus

  • Use L93.1 for Subacute cutaneous lupus erythematosus

  • Use L93.2 for Other local lupus erythematosus

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to L93: its own notes plus those printed at Chapter 12. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 12 (L00-L99) Diseases of the skin and subcutaneous tissue applies to 1,001 codes
  • 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.-)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

  • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name L93, its category, or a range that includes it.

Excludes2 1

These codes carry an Excludes2 note naming L93: its condition is not part of those codes, and both may be reported when the patient has both.

  • A18.4 Tuberculosis of skin and subcutaneous tissue
    lupus erythematosus (L93.-)

Clinical InformationClinical

  • Lupus Erythematosus

    an autoimmune, connective tissue chronic inflammatory disorder affecting the skin, joints, kidneys, lungs, heart, and the peripheral blood cells. it is more commonly seen in women than men. variants include discoid and systemic lupus erythematosus.

Patient EducationClinical

Lupus

Lupus is a chronic (long-lasting) type of autoimmune disease. Autoimmune diseases happen when your immune system attacks healthy cells and tissues by mistake. This attack causes inflammation. It can also damage many parts of the body, including the joints, skin, kidneys, heart, lungs, and brain.

The full article covers:

  • What is lupus?
  • What causes lupus?
  • Who is more likely to get lupus?
  • What are the symptoms of lupus?
  • What other problems can lupus cause?
  • How is lupus diagnosed?
  • What are the treatments for lupus?
  • How can I cope with lupus?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About L93Overview

What is the ICD-10 code for lupus erythematosus?

L93 is the ICD-10-CM category for lupus erythematosus, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is L93 (Lupus erythematosus) a billable code?

No. This is a category header that groups the codes for lupus erythematosus, and headers cannot be submitted on claims. Claims for lupus erythematosus need a more specific code from this category, such as L93.0, L93.1, and L93.2.

Can L93 be reported with A18.4?

Not as a rule. The Excludes1 note on L93 lists "lupus exedens (A18.4)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

Does L93 need an additional code?

When the condition applies, yes. The Use Additional Code note reads: code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5). The additional code is reported after L93.