Lupus erythematosus
In Other disorders of the skin and subcutaneous tissue (L80-L99), chapter 12: Diseases of the Skin and Subcutaneous Tissue
3 billable codes under L93: none are a CC or MCC; none map to an HCC.
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Instructional notes
Excludes1: not coded here, use a different code
Use additional code: add a second code for this, listed after this one
- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Covers assigning pressure ulcer codes by site and stage, including unstageable, healing, healed, and progressing ulcers, and coding healing or progressing non-pressure chronic ulcers.
- Pressure ulcer stage codes (page 58)
- Non-Pressure Chronic Ulcers (page 60)
All codes under L93
L93 can't be used on a claim. Pick a billable code below; grey headings group them.
L93 MS-DRGs
As the principal diagnosis, all 3 billable codes under L93 group to MS-DRG 595 or 596 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
Other codes that refer to L93
Notes on these codes point to L93.
- A18.4 Excludes2: lupus erythematosus (L93.-)
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
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.
Read more about lupus on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.