ICD-10 Code L97.101 – Non-pressure chronic ulcer of unspecified thigh limited to breakdown of skin (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L97.101 – Non-pressure chronic ulcer of unspecified thigh limited to breakdown of skin
What it is
This code identifies a chronic, non-pressure ulcer on the thigh when the skin is broken but deeper tissue is not exposed. Use it for an unspecified thigh site when documentation does not name left or right.
Clinical signs
Typical findings include a persistent open sore on the thigh with superficial skin loss and delayed healing. Clinical features vary; refer to documentation for laterality, depth, and whether infection or necrosis is present.
When to use this code
Use L97.101 when the record clearly states a chronic non-pressure ulcer of the thigh limited to breakdown of skin and does not specify side. It fits outpatient, inpatient, or wound-care documentation when the ulcer is not due to pressure injury. If the note describes a deeper ulcer or a different anatomic site, choose the more specific code.
Do not use for
Do not use this code for pressure ulcers, acute wounds, or ulcers involving muscle, fat, or bone. Check documentation if the laterality is known or if the lesion is on another lower-extremity site.
Coding tip
Confirm the ulcer is non-pressure and chronic, then code the highest documented depth and the most specific thigh laterality available.