ICD-10 Code L97.105 – Non-pressure chronic ulcer of unspecified thigh with muscle involvement without evidence of necrosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L97.105 – Non-pressure chronic ulcer of unspecified thigh with muscle involvement without evidence of necrosis
What it is
This code identifies a chronic, non-pressure ulcer on the thigh where the wound extends to muscle, but there is no documented necrosis. Use it when the site is the thigh and the depth is specifically to muscle.
Clinical signs
Typical findings include a persistent open wound on the thigh with visible or documented muscle involvement. Clinical features vary; refer to documentation for ulcer depth, location, and whether necrotic tissue is absent.
When to use this code
Use L97.105 when the record clearly states a non-pressure chronic ulcer of the unspecified thigh with muscle involvement and no evidence of necrosis. You should also confirm that the ulcer is chronic and not caused by pressure.
If the provider documents laterality, a more specific thigh code may apply. Check documentation when the depth, site, or presence of necrosis is unclear.
Do not use for
Do not use this code for pressure ulcers, acute wounds, or ulcers without muscle involvement. Also avoid it if necrosis is documented or if the ulcer site is not the thigh.
Coding tip
Verify both the ulcer depth and the absence of necrosis before assigning L97.105.