ICD-10 Code L93.1 – Subacute cutaneous lupus erythematosus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L93.1 – Subacute cutaneous lupus erythematosus
What it is
L93.1 identifies subacute cutaneous lupus erythematosus, a lupus-related skin condition that mainly affects the skin rather than internal organs. It is used when documentation specifies this cutaneous form of lupus.
Clinical signs
Clinical features vary; refer to documentation. Typical findings include photosensitive skin lesions, often annular or papulosquamous, with involvement of sun-exposed areas. Systemic lupus features may be absent or limited.
When to use this code
Use L93.1 when the provider documents subacute cutaneous lupus erythematosus, including abbreviated forms such as SCLE. This code fits confirmed cutaneous lupus presentations when the record does not describe a different lupus subtype.
If the note only says “lupus” or “rash,” check documentation before coding. Be sure the diagnosis is specifically supported and not better represented by another cutaneous lupus code.
Do not use for
Do not use this code for systemic lupus erythematosus, discoid lupus, or nonspecific photosensitive rash without documentation of SCLE. Check documentation if the diagnosis is uncertain.
Coding tip
Code L93.1 only when the provider clearly names subacute cutaneous lupus erythematosus.