ICD-10 Code L97.302 – Non-pressure chronic ulcer of unspecified ankle with fat layer exposed (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L97.302 – Non-pressure chronic ulcer of unspecified ankle with fat layer exposed
What it is
This code identifies a chronic, non-pressure ulcer located at the ankle when the fat layer is exposed. Use it when the record specifies the ankle site but does not state right or left.
Clinical signs
Typical findings include a persistent open wound at the ankle with visible subcutaneous fat. Clinical features vary; refer to documentation for laterality, depth, and any associated infection or necrosis.
When to use this code
Use L97.302 when the provider documents a chronic ankle ulcer, the ulcer is not caused by pressure, and fat layer exposure is noted. Choose this code when laterality is not documented or is unspecified. Confirm the wound is chronic and not a pressure injury.
Do not use for
Do not use this code for pressure ulcers, acute wounds, or ulcers at a different site. If the record identifies right or left ankle, use the laterality-specific code instead.
Coding tip
Check the note for laterality and ulcer depth before assigning L97.302.