ICD-10 Code L97.909 – Non-pressure chronic ulcer of unspecified part of unspecified lower leg with unspecified severity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L97.909 – Non-pressure chronic ulcer of unspecified part of unspecified lower leg with unspecified severity
What it is
This code identifies a chronic ulcer on the lower leg that is not caused by pressure and whose exact side, location, and severity are not documented. Use it when the record confirms a non-pressure ulcer but gives only nonspecific details.
Clinical signs
Typical findings include an open skin lesion on the lower leg with delayed healing, drainage, or surrounding tissue changes. Clinical features vary; refer to documentation for laterality, depth, and severity.
When to use this code
Use L97.909 when the provider documents a chronic non-pressure ulcer of the lower leg but does not specify the exact part of the leg, whether it is right or left, or the severity. It also fits when the note states “unspecified” details and no more precise code can be assigned.
Choose a more specific ulcer code if the chart identifies the side, exact location, or depth. Check documentation before coding because ulcer coding often depends on detailed anatomic and severity descriptors.
Do not use for
Do not use this code for pressure ulcers, traumatic wounds, or ulcers with a clearly documented site or severity that supports a more specific code. Check documentation.
Coding tip
If the note lacks laterality or severity, code only what is documented and query for clarification when the ulcer details are needed.