ICD-10 Code L97 – Non-pressure chronic ulcer of lower limb, not elsewhere classified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L97 – Non-pressure chronic ulcer of lower limb, not elsewhere classified
What it is
This code identifies a chronic ulcer on the lower limb that is not caused by pressure. Use it when the record describes a persistent open skin lesion on the leg, ankle, foot, or related lower-limb area.
Clinical signs
Typical findings include a nonhealing wound with skin breakdown, drainage, or exposed tissue. Clinical features vary; refer to documentation for location, laterality, and depth.
When to use this code
Use L97 when the provider documents a chronic, non-pressure ulcer of the lower limb and does not assign a more specific ulcer code. You should code the documented site and severity details when available. If the note is unclear about cause or location, check documentation.
Do not use for
Do not use this code for pressure ulcers, because those are coded elsewhere. It is also not the right choice for acute wounds, abrasions, or ulcers outside the lower limb.
Coding tip
Capture laterality, exact site, and ulcer depth from the chart, because these details often determine the final code.