ICD-10 Code L89.309 – Pressure ulcer of unspecified buttock, unspecified stage (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L89.309 – Pressure ulcer of unspecified buttock, unspecified stage
What it is
This code identifies a pressure ulcer located on the buttock when the documentation does not specify the side or the stage. Use it when the record confirms a pressure injury but leaves key details incomplete.
Clinical signs
Clinical features vary; refer to documentation. Pressure ulcers may present as localized skin or tissue damage over a bony area, with redness, open skin, or deeper breakdown depending on stage.
When to use this code
Use this code when the provider documents a pressure ulcer of the buttock but does not state whether it is right, left, or bilateral. It also fits cases where the stage is not recorded. You should code based on the exact wording in the chart.
Do not use for
Do not use this code if the ulcer is documented at a different site, such as the sacrum, hip, or ischium. Do not use it when the side or stage is clearly documented and a more specific code is available.
Coding tip
Query the provider for laterality and stage whenever the note says only “pressure ulcer of buttock.”