ICD-10 Code L89.523 – Pressure ulcer of left ankle, stage 3 (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L89.523 – Pressure ulcer of left ankle, stage 3
What it is
This code identifies a pressure ulcer on the left ankle with full-thickness skin loss. Stage 3 means subcutaneous tissue is visible, but bone, tendon, and muscle are not exposed.
Clinical signs
You should expect an open ulcer at the left ankle with depth into subcutaneous tissue. Slough may be present, but exposed bone or tendon would suggest a different stage. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents a stage 3 pressure ulcer specifically on the left ankle. Confirm laterality and stage in the record, especially if multiple pressure injuries are present. If documentation only says “pressure ulcer” or stage is unclear, check documentation.
Do not use for
Do not use this code for pressure ulcers on other sites or for ulcers that are not staged as 3. It is also incorrect for unstageable ulcers or those with exposed bone, tendon, or muscle.
Coding tip
Match the documented site, laterality, and stage exactly before assigning L89.523.