ICD-10 Code L89.134 – Pressure ulcer of right lower back, stage 4 (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L89.134 – Pressure ulcer of right lower back, stage 4
What it is
This code identifies a pressure ulcer on the right lower back with full-thickness skin and tissue loss, stage 4. Stage 4 means deeper structures may be exposed or involved.
Clinical signs
Typical findings include an open ulcer with visible depth, possible undermining or tunneling, and involvement of muscle, tendon, or bone. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents a stage 4 pressure ulcer specifically on the right lower back. The record should support both the site and the stage.
If the note says sacral, coccygeal, or another location, do not assume this code. Check documentation when the laterality or exact anatomic site is unclear.
Do not use for
Do not use this code for pressure injuries at other back sites, different laterality, or lower-stage ulcers. Do not use it if the stage is not documented or cannot be verified.
Coding tip
Match the wound location and stage exactly to the provider’s wording before assigning L89.134.