ICD-10-CM 2027
ICD-10 code for Stevens-Johnson disease or syndrome
From the official ICD-10-CM alphabetic index entry “Stevens-Johnson disease or syndrome”. Page updated September 29, 2026.
About coding Stevens-Johnson disease or syndrome
The ICD-10-CM code for Stevens-Johnson disease or syndrome is L51.1 (Stevens-Johnson syndrome). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on L51.1.
Within L51 (erythema multiforme), L51.1 is specifically for Stevens-Johnson syndrome. Related codes cover Nonbullous erythema multiforme (L51.0), toxic epidermal necrolysis [Lyell] (L51.2), Stevens-Johnson syndrome-toxic epidermal necrolysis overlap syndrome (L51.3), other erythema multiforme (L51.8) and unspecified (L51.9).
Use an additional code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5). Use an additional 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-) and 7 more.
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
More specific Stevens-Johnson disease or syndrome codes (official index)
- toxic epidermal necrolysis overlap L51.3 — Stevens-Johnson syndrome-toxic epidermal necrolysis overlap syndrome
Common questions about Stevens-Johnson disease or syndrome ICD-10 codes
What is the ICD-10 code for Stevens-Johnson disease or syndrome?
- L51.1 — Stevens-Johnson syndrome. More specific codes apply when the documentation supports them: L51.3.
What is the ICD-10 code for toxic epidermal necrolysis overlap stevens-johnson disease or syndrome?
- L51.3 — Stevens-Johnson syndrome-toxic epidermal necrolysis overlap syndrome.
Is L51.1 billable?
- Yes. L51.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L51.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L51.1 as a principal diagnosis.
Is L51.1 a CC or MCC?
- L51.1 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.