Lupus erythematosus (L93) ICD-10-CM
The L93 code range covers lupus erythematosus with 4 ICD-10-CM diagnosis codes. 3 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the L93 Range 4 codes · 3 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the L93 range.
Anetoderma
Benign DERMATOSIS caused by a loss of dermal ELASTIC TISSUE resulting in localized sac-like areas of flaccid skin. It can be either primary (idiopathic) or secondary to other skin conditions, PENICILLAMINE use, or premature birth.
About the L93 Code Range
The ICD-10 code section L93 covers various forms of lupus erythematosus, a group of autoimmune skin conditions. These codes help identify specific types such as discoid, subacute cutaneous, and other localized lupus variants.
The main code L93 refers broadly to lupus erythematosus. Code L93.0 is used specifically for discoid lupus erythematosus, recognized by chronic skin lesions often called lupus erythematosus chronicus or familial chilblain lupus erythematosus. This includes various manifestations like scalp, face, and mucous membrane involvement. The code L93.1 identifies subacute cutaneous lupus erythematosus, known also by terms such as anetoderma or the annular/polycyclic type, featuring skin lesions that are distinct from discoid lupus. Lastly, L93.2 captures other localized forms like lupus erythematosus profundus and tumidus, often involving deeper skin layers or vasculitis. Medical coders use these specific ICD-10 codes for accurate documentation and treatment planning of lupus-related skin disorders.
Questions About This Page
How many billable codes are in the L93 range?
Of the 4 codes in this range, 3 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the L93 range classify?
The range classifies lupus erythematosus. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
