ICD-10 Code L97.806 – Non-pressure chronic ulcer of other part of unspecified lower leg with bone involvement without evidence of necrosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L97.806 – Non-pressure chronic ulcer of other part of unspecified lower leg with bone involvement without evidence of necrosis
What it is
This code identifies a chronic, non-pressure ulcer on another part of an unspecified lower leg that extends to the bone, but without necrosis. Use it when the documentation clearly shows bone involvement and no dead tissue.
Clinical signs
Typical findings include a persistent open wound on the lower leg with exposed or involved bone. Clinical features vary; refer to documentation for ulcer location, chronicity, and whether necrosis is absent.
When to use this code
Use L97.806 when the record states a chronic lower-leg ulcer, not caused by pressure, and specifies bone involvement without necrosis. The site is described as “other part” of an unspecified lower leg, so you should not assume a more exact location. If the note lacks laterality, depth, or tissue detail, check documentation before coding.
Do not use for
Do not use this code for pressure injuries, acute wounds, or ulcers with necrosis. Also avoid it if the ulcer does not involve bone or if the documentation identifies a different lower-leg site.
Coding tip
Code only after confirming both bone involvement and the absence of necrosis in the provider note.