ICD-10 Code L97.906 – Non-pressure chronic ulcer of unspecified part of unspecified lower leg with bone involvement without evidence of necrosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L97.906 – Non-pressure chronic ulcer of unspecified part of unspecified lower leg with bone involvement without evidence of necrosis
What it is
This code identifies a chronic, non-pressure ulcer on an unspecified part of the lower leg that extends to bone, without necrosis. Use it when the record documents bone involvement but does not describe a pressure injury or tissue death.
Clinical signs
Typical documentation may describe a persistent open wound of 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 L97.906 when the provider documents a chronic lower-leg ulcer and specifically notes bone involvement, but the exact site on the lower leg is not specified. It also fits when the ulcer is clearly non-pressure and there is no evidence of necrosis. Check documentation if the wound is described as a pressure ulcer, traumatic wound, or acute lesion.
Do not use for
Do not use this code if the ulcer involves necrosis, since a different code may apply. Do not use it when the wound is a pressure ulcer or when documentation identifies a more specific lower-leg location.
Coding tip
Confirm that the chart states “bone involvement” and “without necrosis” before assigning L97.906.