ICD-10 Code L97.522 – Non-pressure chronic ulcer of other part of left foot with fat layer exposed (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L97.522 – Non-pressure chronic ulcer of other part of left foot with fat layer exposed
What it is
This code identifies a chronic ulcer on the left foot, in a location other than the heel or toe, with the fat layer exposed. It applies to a non-pressure ulcer, meaning the wound is not caused by pressure injury.
Clinical signs
Typical findings include an open, non-healing wound on the left foot with visible subcutaneous fat. Clinical features vary; refer to documentation for size, depth, drainage, and any surrounding tissue changes.
When to use this code
Use this code when documentation states a chronic ulcer on the left foot at another specified site, and the wound extends to exposed fat. It is appropriate when the record clearly identifies the ulcer as non-pressure and left-sided. Confirm the anatomical location; if the site is unclear, check documentation.
Do not use for
Do not use this code for pressure ulcers, ulcers of the heel or toe, or ulcers without fat-layer exposure. If the chart does not specify the left foot or exact depth, check documentation.
Coding tip
Verify both laterality and ulcer depth before assigning L97.522.