ICD-10 Code L97.326 – Non-pressure chronic ulcer of left ankle with bone involvement without evidence of necrosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L97.326 – Non-pressure chronic ulcer of left ankle with bone involvement without evidence of necrosis
What it is
This code identifies a chronic, non-pressure ulcer on the left ankle that extends to bone, with no documented necrosis. Use it when the record clearly shows bone involvement and the ulcer is not caused by pressure.
Clinical signs
Typical findings include a persistent open wound at the left ankle with exposed or affected bone. Clinical features vary; refer to documentation for depth, chronicity, and any evidence that necrosis is absent.
When to use this code
Use L97.326 when the provider documents a chronic ulcer of the left ankle and specifies bone involvement without necrosis. It is appropriate when the ulcer is non-pressure and the laterality and depth are clearly stated. Check documentation if the site is described differently or the depth is not confirmed.
Do not use for
Do not use this code for pressure ulcers, ulcers without bone involvement, or ulcers with documented necrosis. If the record does not specify the left ankle or the ulcer depth, check documentation.
Coding tip
Confirm laterality, ulcer depth, and the absence of necrosis before assigning L97.326.