ICD-10 Code L97.31 – Non-pressure chronic ulcer of right ankle (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L97.31 – Non-pressure chronic ulcer of right ankle
What it is
This code identifies a chronic, non-pressure ulcer located on the right ankle. It is used when the wound is not caused by pressure injury and the documentation specifies the ankle site.
Clinical signs
Typical findings include a persistent open sore at the right ankle with delayed healing, drainage, or surrounding skin changes. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents a chronic ulcer of the right ankle and does not describe it as a pressure ulcer. It may apply in outpatient, inpatient, or wound care records when the anatomic site is clear. Check documentation for laterality and chronicity.
Do not use for
Do not use this code for pressure ulcers, ulcers at other sites, or wounds without documentation of chronicity. If the record does not confirm the right ankle, check documentation.
Coding tip
Verify the ulcer is non-pressure and specifically documented on the right ankle before assigning L97.31.