ICD-10 Code L97.406 – Non-pressure chronic ulcer of unspecified heel and midfoot with bone involvement without evidence of necrosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L97.406 – Non-pressure chronic ulcer of unspecified heel and midfoot with bone involvement without evidence of necrosis
What it is
This code identifies a chronic, non-pressure ulcer on the heel or midfoot when the site is unspecified and the wound extends to bone. It applies only when there is no evidence of necrosis.
Clinical signs
Typical findings include an open ulcer with documented bone involvement, such as exposed or affected bone. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly states a chronic ulcer of the heel or midfoot, the laterality or exact location is not specified, and bone involvement is documented. It also requires documentation that necrosis is absent. Check documentation if the note does not confirm these elements.
Do not use for
Do not use it for pressure ulcers, ulcers without bone involvement, or ulcers with necrosis. If the site is documented more specifically or the wound depth differs, choose the more accurate code.
Coding tip
Verify three points in the note: chronic ulcer, unspecified heel or midfoot site, and bone involvement without necrosis.