L51.0 — Nonbullous erythema multiforme
Is L51.0 billable?
Yes — L51.0 is billable for FY2027. L51.0 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. L51.0 may be submitted for encounters from October 1, 2026 through September 30, 2027.
L51.0 at a glance
| Code | L51.0 |
|---|---|
| Description | Nonbullous erythema multiforme |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does L51.0 group to?
L51.0 sits in MDC 09 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 595Major Skin Disorders with MCCmedical
- 596Major Skin Disorders without MCCmedical
How is L51.0 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to L51.0. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Erythema, erythematous › multiforme › nonbullous (infectional) (inflammation)
Excludes1 — never code together — inherited from L49-L54
The conditions below can never be reported together with L51.0 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from L51
The conditions below can never be reported together with L51.0 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Use additional code — inherited from L51
Report an additional code alongside L51.0 to fully describe the condition. L51.0 is sequenced first.
- 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.-)
Excludes2 — not included here — inherited from Chapter 12
The conditions below are not part of L51.0, but a patient may have both at the same time. When documentation supports it, L51.0 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- lipomelanotic reticulosis (I89.8)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- viral warts (B07.-)
How long has L51.0 existed?
L51.0 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.