ICD-10 Code L89.323 – Pressure ulcer of left buttock, stage 3 (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L89.323 – Pressure ulcer of left buttock, stage 3
What it is
This code identifies a pressure ulcer on the left buttock with full-thickness skin loss into the subcutaneous tissue. The wound is stage 3, meaning deeper tissue is involved but bone, tendon, and muscle are not exposed.
Clinical signs
You may see a crater-like ulcer with visible fat, slough, or undermining. Clinical features vary; refer to documentation, and confirm the documented stage and exact left buttock location.
When to use this code
Use this code when the provider documents a stage 3 pressure ulcer specifically on the left buttock. It applies when the site, laterality, and stage are all clearly stated. If the record only says “pressure injury” or omits stage, check documentation before coding.
Do not use for
Do not use this code for stage 1, stage 2, unstageable, or deep tissue pressure injuries. Also avoid it if the ulcer is on a different site or the laterality is not confirmed.
Coding tip
Always match the documented stage and exact body location before assigning L89.323.