ICD-10 Code L97.20 – Non-pressure chronic ulcer of unspecified calf (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L97.20 – Non-pressure chronic ulcer of unspecified calf
What it is
This code identifies a chronic ulcer on the calf that is not caused by pressure. Use it when the record specifies the calf but does not document left or right side.
Clinical signs
Typical findings include a persistent open skin lesion with surrounding tissue breakdown, drainage, or delayed healing. Clinical features vary; refer to documentation.
When to use this code
Use L97.20 when the clinician documents a non-pressure chronic ulcer of the calf and laterality is not stated. It may appear in wound care notes, outpatient follow-up, or problem lists when the ulcer is ongoing. Confirm the site is the calf and not another lower-leg location.
Do not use for
Do not use this code for pressure ulcers, acute wounds, or ulcers on the ankle, foot, or other lower-leg sites. If laterality is documented, choose the more specific code.
Coding tip
Check documentation for laterality and exact ulcer location before assigning L97.20.