ICD-10 Code L89.303 – Pressure ulcer of unspecified buttock, stage 3 (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L89.303 – Pressure ulcer of unspecified buttock, stage 3
What it is
This code identifies a pressure ulcer on the buttock when the side is not documented and the wound is stage 3. Stage 3 means full-thickness skin loss with visible subcutaneous tissue.
Clinical signs
Look for an open ulcer over the buttock with deeper tissue involvement and fat exposure, without exposed muscle, tendon, or bone. Clinical features vary; refer to documentation.
When to use this code
Use L89.303 when the provider documents a pressure ulcer of the buttock, stage 3, but does not specify right or left. It also fits follow-up notes that continue to describe the same staged ulcer. If laterality is documented, choose the more specific code.
Do not use for
Do not use this code for stage 1, stage 2, unstageable, or deep tissue pressure injuries. Do not use it if the buttock side is documented; check documentation for a more specific code.
Coding tip
Confirm both the stage and laterality in the record before assigning L89.303.