ICD-10 Code L89.94 – Pressure ulcer of unspecified site, stage 4 (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L89.94 – Pressure ulcer of unspecified site, stage 4
What it is
This code identifies a pressure ulcer at an unspecified body site with full-thickness skin and tissue loss. Stage 4 ulcers expose or involve deeper structures such as muscle, tendon, or bone.
Clinical signs
Look for a deep open ulcer with visible deeper tissue, undermining, or tunneling. Clinical features vary; refer to documentation for site and stage confirmation.
When to use this code
Use L89.94 when the record clearly documents a stage 4 pressure ulcer but does not specify the body location. It applies when the provider identifies the ulcer as pressure-related and confirms stage 4. If the site is documented elsewhere, code the specified location instead.
Do not use for
Do not use this code for non-pressure wounds, ulcers of a known site, or pressure injuries documented at a different stage. Check documentation if the stage or pressure-ulcer cause is unclear.
Coding tip
Verify both the stage and the absence of a specified site before assigning L89.94.