L93.0 Discoid lupus erythematosus

Billable ICD-10-CM code, FY2026.

Applicable to

• Lupus erythematosus NOS

Applies from L93 Lupus erythematosus

Excludes1 (never 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)

Risk adjustment (HCC)

• RxHCC V08: HCC 317 — Discoid Lupus Erythematosus

MS-DRG index

Defines the logic of DRG(s) 595-596 in MDC 09.

Approximate ICD-9-CM (GEMs)

• 695.4 Lupus erythematosus (approximate)

Code annotations containing back-references to L93.0

Back-references to L93.0

• Type 1 Excludes: M32 Systemic lupus erythematosus (SLE) ("lupus erythematosus (discoid) (NOS) (L93.0)")

Back-references to L93

• Type 2 Excludes: A18.4 Tuberculosis of skin and subcutaneous tissue ("lupus erythematosus (L93.-)")

Diagnosis Index entries for L93.0

• Biett's disease
• Lupus › discoid (local)
• Lupus › erythematosus (discoid) (local)
• Lupus › nontuberculous, not disseminated

Nearby codes

• L93 Lupus erythematosus
• L93.0 Discoid lupus erythematosus (this code)
• L93.1 Subacute cutaneous lupus erythematosus
• L93.2 Other local lupus erythematosus