ICD-10 Code L97.224 – Non-pressure chronic ulcer of left calf with necrosis of bone (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L97.224 – Non-pressure chronic ulcer of left calf with necrosis of bone
What it is
This code identifies a chronic, non-pressure ulcer on the left calf that extends to and involves necrotic bone. Use it when documentation confirms both the location and bone necrosis.
Clinical signs
Typical findings include a persistent open wound on the left calf with exposed or nonviable bone and delayed healing. Clinical features vary; refer to documentation for depth, chronicity, and tissue involvement.
When to use this code
Use L97.224 when the record clearly states a chronic ulcer on the left calf with necrosis of bone. It may appear in wound care, vascular, or diabetic foot/leg documentation, but only if the ulcer is non-pressure and the left calf is specified.
Do not use for
Do not use this code for pressure ulcers, acute wounds, or ulcers at another leg site. Check documentation if bone necrosis is not confirmed or if the laterality and location are unclear.
Coding tip
Verify that the provider documents both “left calf” and “necrosis of bone” before assigning L97.224.