L93 — Lupus erythematosus
L93 is a non-billable header ICD-10-CM code for lupus erythematosus. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Use additional code
Add a secondary code to capture the detail described below.
Other codes that can never be billed with L93
These codes carry an Excludes1 note pointing at L93. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading L93 alone.
Risk adjustment
L93 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code history
L93 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Code to one of these instead L93
3 child codes. Green means billable.
Questions about L93
- Is L93 a billable ICD-10-CM code?
- No. L93 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does L93 sit in the tabular list?
- Diseases of the skin and subcutaneous tissue (L00-L99), in the block Other disorders of the skin and subcutaneous tissue (L80-L99).
- What cannot be coded together with L93?
- L93 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter.