ICD-10 Code L97.824 – Non-pressure chronic ulcer of other part of left lower leg with necrosis of bone (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L97.824 – Non-pressure chronic ulcer of other part of left lower leg with necrosis of bone
What it is
This code identifies a chronic, non-pressure ulcer on another part of the left lower leg that extends to and involves bone necrosis. Use it when the record clearly documents both the ulcer location and bone necrosis.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include a persistent open wound with exposed or nonviable bone, delayed healing, and local tissue breakdown at the specified left lower leg site.
When to use this code
Use L97.824 when the provider documents a chronic ulcer on the left lower leg, not caused by pressure, and specifies necrosis of bone. The site must be “other part” of the left lower leg, not the ankle, heel, or foot. If the depth or site is unclear, check documentation.
Do not use for
Do not use this code for pressure ulcers, ulcers of the foot or ankle, or ulcers without documented bone necrosis. If laterality or anatomic location is different, choose the code that matches the record.
Coding tip
Verify the exact ulcer location and depth in the note before coding, because laterality and bone involvement drive code selection.