ICD-10 Code L97.223 – Non-pressure chronic ulcer of left calf with necrosis of muscle (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L97.223 – Non-pressure chronic ulcer of left calf with necrosis of muscle
What it is
This code identifies a chronic ulcer on the left calf caused by non-pressure factors, with documented necrosis of muscle. Use it when the record shows tissue loss extending beyond skin and subcutaneous tissue into muscle.
Clinical signs
Expect a persistent open wound on the left calf with nonviable muscle tissue, often described as necrotic, sloughing, or exposed. Clinical features vary; refer to documentation for depth, laterality, and whether the ulcer is non-pressure related.
When to use this code
Use L97.223 when the provider documents a chronic ulcer of the left calf and specifically states necrosis of muscle. This is appropriate for wounds from venous, arterial, diabetic, or other non-pressure causes if the site and tissue depth are confirmed. Check documentation if the cause is unclear.
Do not use for
Do not use this code for pressure ulcers, acute wounds, or ulcers without muscle necrosis. If the chart only says “left calf ulcer” or does not confirm depth, select a different code or check documentation.
Coding tip
Confirm laterality, non-pressure etiology, and the deepest documented tissue level before assigning L97.223.