L59.0 — Erythema ab igne [dermatitis ab igne]
Is L59.0 billable?
Yes — L59.0 is billable for FY2027. L59.0 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. L59.0 may be submitted for encounters from October 1, 2026 through September 30, 2027.
L59.0 at a glance
| Code | L59.0 |
|---|---|
| Description | Erythema ab igne [dermatitis ab igne] |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does L59.0 group to?
L59.0 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.
- 606Minor Skin Disorders with MCCmedical
- 607Minor Skin Disorders without MCCmedical
How is L59.0 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to L59.0. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Dermatitis › ab igne (eczematous)
- Dermatitis › calorica (eczematous)
- Dermatitis › combustionis (eczematous)
- Dermatitis › heat (eczematous)
- Erythema, erythematous › ab igne (infectional) (inflammation)
- Heat › dermatitis or eczema (effects)
- Dermatitis › due to › hot › weather or places (eczematous)
Excludes2 — not included here — inherited from Chapter 12
The conditions below are not part of L59.0, but a patient may have both at the same time. When documentation supports it, L59.0 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 L59.0 existed?
L59.0 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.
Which codes are confused with L59.0?
ICD-10-CM declares these codes mutually exclusive with L59.0 — exactly one of each pair can be correct for a given encounter.