ICD-10 Code L89.144 – Pressure ulcer of left lower back, stage 4 (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L89.144 – Pressure ulcer of left lower back, stage 4
What it is
This code identifies a stage 4 pressure ulcer located on the left lower back. Stage 4 means full-thickness tissue loss with exposed deeper structures; check documentation for exact depth and involved tissues.
Clinical signs
Expect an open pressure injury with full-thickness skin loss and visible or palpable deeper tissue involvement. Clinical features vary; refer to documentation for exposed bone, tendon, or muscle and for any necrosis or undermining.
When to use this code
Use L89.144 when the provider documents a stage 4 pressure ulcer specifically on the left lower back. The record should support both the anatomic site and the stage. If the location is unclear or the stage is not stated, check documentation before coding.
Do not use for
Do not use this code for pressure ulcers at a different back location, a different laterality, or a different stage. Do not assign it when the documentation only says “pressure injury” without confirming stage 4.
Coding tip
Verify the exact site and stage in the provider note, wound assessment, or consult before assigning L89.144.