ICD-10 Code L97.322 – Non-pressure chronic ulcer of left ankle with fat layer exposed (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L97.322 – Non-pressure chronic ulcer of left ankle with fat layer exposed
What it is
This code identifies a chronic, non-pressure ulcer on the left ankle where the wound extends through the skin and exposes subcutaneous fat. Use it for a non-healing ulcer not caused by pressure injury.
Clinical signs
Typical findings include an open ankle wound with visible fat layer, delayed healing, and surrounding skin changes. Clinical features vary; refer to documentation for laterality, chronicity, and depth.
When to use this code
Use L97.322 when the record clearly states a chronic ulcer of the left ankle with fat layer exposed and the ulcer is non-pressure related. Confirm the site is the ankle, not the foot or lower leg. You should also code any documented underlying cause or associated condition separately.
Do not use for
Do not use this code for pressure ulcers, superficial wounds, or ulcers without documentation of fat layer exposure. Check documentation if the laterality, location, or ulcer depth is unclear.
Coding tip
Verify both laterality and depth in the note before assigning this code.