ICD-10 Code L89.501 – Pressure ulcer of unspecified ankle, stage 1 (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L89.501 – Pressure ulcer of unspecified ankle, stage 1
What it is
This code identifies a pressure ulcer on an unspecified ankle that is limited to stage 1 skin injury. It means intact skin with localized redness that does not blanch.
Clinical signs
Look for persistent redness over the ankle, usually with intact skin and possible warmth, pain, or firmness. Clinical features vary; refer to documentation.
When to use this code
Use L89.501 when the provider documents a pressure ulcer at the ankle, the side is not specified, and the ulcer is stage 1. It applies when the skin is intact and only superficial pressure injury is described. Check documentation if the note mentions a different stage or a non-pressure wound.
Do not use for
Do not use this code for ankle ulcers with broken skin, deeper tissue loss, or an unspecified pressure ulcer stage. Also avoid it when the wound is documented as another type of ulcer or injury.
Coding tip
Always confirm the site, laterality, and stage in the note before assigning L89.501.