ICD-10 Code L97.505 – Non-pressure chronic ulcer of other part of unspecified foot with muscle involvement without evidence of necrosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L97.505 – Non-pressure chronic ulcer of other part of unspecified foot with muscle involvement without evidence of necrosis
What it is
This code identifies a chronic, non-pressure ulcer on another part of an unspecified foot that extends into muscle but shows no necrosis. Use it when the documentation specifies the ulcer depth and location.
Clinical signs
Typical findings include a persistent open wound with exposed or involved muscle tissue and no documented dead tissue. Clinical features vary; refer to documentation.
When to use this code
Use L97.505 when the provider documents a chronic foot ulcer, non-pressure in origin, with muscle involvement and no evidence of necrosis. The foot site is unspecified, so do not assign a more specific laterality or location code unless documented. Confirm that the record supports chronicity and depth.
Do not use for
Do not use this code for pressure ulcers, acute wounds, or ulcers with necrosis. If the chart identifies a more specific foot site or a different tissue depth, check documentation and code accordingly.
Coding tip
Match all three elements in the note: non-pressure, chronic, and muscle involvement without necrosis.