ICD-10 Code L97.91 – Non-pressure chronic ulcer of unspecified part of right lower leg (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L97.91 – Non-pressure chronic ulcer of unspecified part of right lower leg
What it is
This code identifies a chronic, non-pressure ulcer located somewhere on the right lower leg, but the exact site is not specified. Use it when documentation confirms a persistent skin ulcer and does not name a more precise lower-leg location.
Clinical signs
Typical findings include an open skin lesion with delayed healing on the right lower leg. Clinical features vary; refer to documentation for depth, drainage, infection, or surrounding tissue changes.
When to use this code
Use L97.91 when the record clearly states a chronic non-pressure ulcer of the right lower leg and the anatomic subsite is unspecified. It is appropriate when the provider documents the ulcer but does not identify calf, ankle, or other exact location.
Choose this code only if the ulcer is not due to pressure injury. If the chart gives a more specific site or laterality, code that more exact option instead.
Do not use for
Do not use this code for pressure ulcers, traumatic wounds, or ulcers with a documented more specific right lower-leg location. Check documentation if the site, cause, or laterality is unclear.
Coding tip
Verify that the ulcer is chronic, non-pressure, and on the right lower leg before assigning L97.91.