ICD-10 Code L92.1 – Necrobiosis lipoidica, not elsewhere classified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L92.1 – Necrobiosis lipoidica, not elsewhere classified
What it is
Necrobiosis lipoidica is a chronic inflammatory skin disorder that usually affects the lower legs. It causes distinctive plaque-like skin changes and is coded when the diagnosis is documented as necrobiosis lipoidica, not elsewhere classified.
Clinical signs
Typical findings include well-defined yellow-brown plaques, often with a shiny surface, visible blood vessels, and possible central thinning or ulceration. Clinical features vary; refer to documentation.
When to use this code
Use L92.1 when the provider documents necrobiosis lipoidica as the confirmed diagnosis. Code it for outpatient or inpatient encounters focused on evaluation, monitoring, or management of this skin condition. If the record only mentions a suspected lesion, check documentation.
Do not use for
Do not use this code for other granulomatous or inflammatory skin disorders unless necrobiosis lipoidica is specifically documented. Do not assign it for nonspecific leg ulcers or diabetic skin changes without confirmation.
Coding tip
Verify that the record names necrobiosis lipoidica explicitly; if the description is vague, you may need clarification before coding.