L92.1 — Necrobiosis lipoidica, not elsewhere classified
Is L92.1 billable?
Yes, but L92.1 is an unspecified code. L92.1 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, L92.1 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting L92.1 — the more specific alternatives are listed below.
L92.1 at a glance
| Code | L92.1 |
|---|---|
| Description | Necrobiosis lipoidica, not elsewhere classified |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does L92.1 group to?
L92.1 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 L92.1 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to L92.1. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Necrobiosis › lipoidica NEC
Excludes1 — never code together
The conditions below can never be reported together with L92.1 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- necrobiosis lipoidica associated with diabetes mellitus (E08-E13 with .620)
Excludes2 — not included here — inherited from Chapter 12
The conditions below are not part of L92.1, but a patient may have both at the same time. When documentation supports it, L92.1 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.-)
Excludes2 — not included here — inherited from L92
The conditions below are not part of L92.1, but a patient may have both at the same time. When documentation supports it, L92.1 and the excluded code may both be reported.
- actinic granuloma (L57.5)
How long has L92.1 existed?
L92.1 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 L92.1?
ICD-10-CM declares these codes mutually exclusive with L92.1 — exactly one of each pair can be correct for a given encounter.