ICD-10 Code L97.424 – Non-pressure chronic ulcer of left heel and midfoot with necrosis of bone (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L97.424 – Non-pressure chronic ulcer of left heel and midfoot with necrosis of bone
What it is
This code identifies a chronic ulcer on the left heel or midfoot that is not caused by pressure and has bone necrosis. Use it when documentation specifies both the left-sided location and bone involvement.
Clinical signs
Typical findings include a persistent open wound in the left heel or midfoot with exposed or necrotic bone. Clinical features vary; refer to documentation for ulcer chronicity, depth, and associated tissue loss.
When to use this code
Use L97.424 when the provider documents a non-pressure chronic ulcer of the left heel or midfoot and states necrosis of bone. It is appropriate for wound records, progress notes, or operative documentation that clearly supports site and severity. Check documentation if laterality or depth is unclear.
Do not use for
Do not use this code for pressure ulcers, ulcers of other foot locations, or ulcers without bone necrosis. If the record only says “ulcer” or does not specify the left heel or midfoot, check documentation.
Coding tip
Confirm that the note explicitly links the ulcer to the left heel or midfoot and documents necrosis of bone before assigning L97.424.