ICD-10-CM · Chapter 12 · L00-L99
L51 Erythema multiforme
Excludes 1 (cannot be coded together)
- staphylococcal scalded skin syndrome (L00)
- Ritter's disease (L00)
Use Additional Code
- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
- code to identify associated manifestations, such as:
- arthropathy associated with dermatological disorders (M14.8-)
- conjunctival edema (H11.42)
- conjunctivitis (H10.22-)
- corneal scars and opacities (H17.-)
- corneal ulcer (H16.0-)
- edema of eyelid (H02.84-)
- inflammation of eyelid (H01.8-)
- keratoconjunctivitis sicca (H16.22-)
- mechanical lagophthalmos (H02.22-)
- stomatitis (K12.-)
- symblepharon (H11.23-)
- code to identify percentage of skin exfoliation (L49.-)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| L51..0 | Nonbullous erythema multiforme | Yes |
| L51..1 | Stevens-Johnson syndrome | Yes |
| L51..2 | Toxic epidermal necrolysis [Lyell] | Yes |
| L51..3 | Stevens-Johnson syndrome-toxic epidermal necrolysis overlap syndrome | Yes |
| L51..8 | Other erythema multiforme | Yes |
| L51..9 | Erythema multiforme, unspecified | Yes |
Last reviewed: September 2026