What does ICD-10 code L93 mean?

ICD-10 code L93 is the standardized code used for lupus erythematosus in medical records and coding systems.

When is ICD-10 code L93 used?

Doctors, hospitals, and insurers may use ICD-10 code L93 when recording lupus erythematosus in a standardized format. This entry may also act as a broader category that points toward more specific child codes.

Does ICD-10 code L93 confirm a diagnosis?

No. A code helps standardize documentation and claims, but it should not be read as a substitute for a clinician's full assessment.

ICD10

ICD-10 Code L93: Lupus erythematosus

Name: ICD-10 Code L93: Lupus erythematosus
Creator: HealthAssure Clinical Team
Published: 2026-05-21T06:18:37.468Z

L93 is an ICD-10 diagnosis entry used to group records related to Lupus erythematosus. 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).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

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 lupus erythematosus 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

L80-L99Other disorders of the skin and subcutaneous tissue

currentL80-L99

Official coding notes

Applicable to

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

Excludes1 (do not code together)

lupus exedens (A18.4)
lupus vulgaris (A18.4)
scleroderma (M34.-)
systemic lupus erythematosus (M32.-)

Use additional code

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

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

DermatologistHematologist

Sibling codes

L80Vitiligobillable L81Other disorders of pigmentation L82Seborrheic keratosis L83Acanthosis nigricansbillable L84Corns and callositiesbillable L85Other epidermal thickening L86Keratoderma in diseases classified elsewherebillable L87Transepidermal elimination disorders L88Pyoderma gangrenosumbillable L89Pressure ulcer L90Atrophic disorders of skin L91Hypertrophic disorders of skin L92Granulomatous disorders of skin and subcutaneous tissue L94Other localized connective tissue disorders L95Vasculitis limited to skin, not elsewhere classified L97Non-pressure chronic ulcer of lower limb, not elsewhere classified L98Other disorders of skin and subcutaneous tissue, not elsewhere classified L99Other disorders of skin and subcutaneous tissue in diseases classified elsewherebillable

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

L93

Replacement codes

L93.0 — Discoid lupus erythematosusL93.1 — Subacute cutaneous lupus erythematosusL93.2 — Other local lupus erythematosus

Common synonyms

Lupus erythematosus

Frequently asked questions

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.