ICD-10 Code L98.491 – Non-pressure chronic ulcer of skin of other sites limited to breakdown of skin (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.491 – Non-pressure chronic ulcer of skin of other sites limited to breakdown of skin
What it is
This code identifies a chronic, non-pressure ulcer on skin at sites other than the usual lower-extremity locations, with damage limited to the epidermis and superficial breakdown. It does not describe a pressure injury.
Clinical signs
Typical findings include a persistent open skin lesion with superficial loss of skin and delayed healing. Clinical features vary; refer to documentation for the exact site, depth, and chronicity.
When to use this code
Use L98.491 when the record documents a chronic ulcer of skin at another site and specifies that breakdown is limited to the skin only. You should also confirm that the lesion is non-pressure in origin. If the provider names the anatomic site, code it from the chart.
Do not use for
Do not use this code for pressure ulcers, deeper ulcers involving subcutaneous tissue or muscle, or acute skin wounds. Check documentation if the note does not clearly state chronicity or non-pressure cause.
Coding tip
Match the ulcer depth and cause exactly; if the record says “limited to breakdown of skin,” avoid codes for deeper tissue loss.