ICD-10 Code L97.802 – Non-pressure chronic ulcer of other part of unspecified lower leg with fat layer exposed (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L97.802 – Non-pressure chronic ulcer of other part of unspecified lower leg with fat layer exposed
What it is
This code identifies a chronic, non-pressure ulcer on another specified part of an unspecified lower leg, with the fat layer exposed. Use it when the wound is not caused by pressure and extends through the skin into subcutaneous tissue.
Clinical signs
Typical findings include an open lower-leg wound with visible fat tissue and delayed healing. Clinical features vary; refer to documentation for location, chronicity, and whether the ulcer is non-pressure in origin.
When to use this code
Use L97.802 when the record clearly documents a chronic ulcer on the lower leg, not from pressure, and the wound reaches the fat layer. You should also confirm that the site is the “other part” of an unspecified lower leg, rather than ankle, heel, or toe.
If the note does not specify the exact lower-leg site or the depth of tissue involvement, check documentation before assigning this code. The ulcer must be documented as chronic and non-pressure related.
Do not use for
Do not use this code for pressure ulcers, traumatic wounds, or ulcers limited to the skin surface. It is also not appropriate if the documentation identifies a different lower-extremity location.
Coding tip
Verify both the anatomic site and ulcer depth in the chart, because L97.802 depends on precise documentation.