ICD-10-CM 2027 diagnosis code
L93Lupus erythematosus
L93 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About L93
L93 is the ICD-10-CM diagnosis code for lupus erythematosus. It belongs to block L80-L99 (other disorders of the skin and subcutaneous tissue) and chapter 12 (diseases of the skin and subcutaneous tissue). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.
To report this condition, pick the subcode that matches the documentation: L93.0 (erythematosus), L93.1 (erythematosus) and L93.2 (erythematosus).
Don't report L93 together with the conditions in its Excludes1 note: lupus exedens (A18.4), lupus vulgaris (A18.4), scleroderma (M34.-) and systemic lupus erythematosus (M32.-).
Use an additional code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under L93
Coding notes
Notes that apply from higher levels
Instructions written at a parent level also apply to L93.
Broader instructions also apply from Chapter 12: Diseases of the skin and subcutaneous tissue.
Codes whose notes reference L93
- A18.4Excludes2
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about L93
Is L93 billable?
- No. L93 is a header code. Report one of its more specific subcodes instead.