ICD-10 Code L97.805 – Non-pressure chronic ulcer of other part of unspecified lower leg with muscle involvement without evidence of necrosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L97.805 – Non-pressure chronic ulcer of other part of unspecified lower leg with muscle 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 into muscle, without necrosis. Use it when the record clearly documents depth to muscle and no tissue death.
Clinical signs
Typical findings include an open lower-leg wound that is slow to heal and shows exposed or involved muscle tissue. Clinical features vary; refer to documentation.
When to use this code
Use L97.805 when the provider documents a chronic lower-leg ulcer, specifies an unspecified lower leg location, and states muscle involvement without necrosis. It also fits when the wound is non-pressure in origin and the depth is clearly recorded. Check documentation if laterality or exact site is unclear.
Do not use for
Do not use this code for pressure ulcers, acute wounds, or ulcers with necrosis. If the chart does not confirm muscle involvement, choose the more accurate ulcer depth code.
Coding tip
Confirm both the ulcer depth and the absence of necrosis before assigning L97.805.