L51.9

L51.9: Erythema multiforme, unspecified

Billable / specific codeICD-10-CM

L51.9 is a billable, specific ICD-10-CM code for erythema multiforme, unspecified. It is valid for submission on a claim.

Check L51.9 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Erythema iris
Erythema multiforme major NOS
Erythema multiforme minor NOS
Herpes iris

Excludes1 inherited from the categories above L51.9

A category’s note binds every code beneath it.

Written on L51: Erythema multiforme

staphylococcal scalded skin syndrome (L00)
Ritter's disease (L00)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

Erythema, erythematous›iris
Erythema, erythematous›multiforme(major) (minor)
Herpes, herpesvirus, herpetic›iris(vesicular erythema multiforme)
Arthritis, arthritic›in›erythema›multiforme
Arthropathy›in›erythema›multiforme

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under L51