L51Erythema multiforme
ICD-10-CM category (non-billable header) code — part of Urticaria and erythema (L49-L54)
Coding Notes
Excludes1 (never code both 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.-)
Subcategories (6)
- L51.0 Nonbullous erythema multiforme
- L51.1 Stevens-Johnson syndrome
- L51.2 Toxic epidermal necrolysis [Lyell]
- L51.3 Stevens-Johnson synd-tox epdrml necrolysis overlap syndrome
- L51.8 Other erythema multiforme
- L51.9 Erythema multiforme, unspecified