ICD-10 Code L89.890 – Pressure ulcer of other site, unstageable (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L89.890 – Pressure ulcer of other site, unstageable
What it is
This code identifies a pressure ulcer at another specified body site when the wound base cannot be staged because slough or eschar obscures the depth. Use it when the location is documented and the stage cannot be determined.
Clinical signs
The ulcer is typically a localized area of skin or tissue breakdown over a pressure point. Clinical features vary; refer to documentation, especially when necrotic tissue prevents assessment of wound depth.
When to use this code
Use L89.890 when the provider documents a pressure ulcer at an “other site” and states it is unstageable. This fits wounds with slough, eschar, or other covering that prevents staging. If the site or stage is unclear, check documentation before coding.
Do not use for
Do not use this code for pressure ulcers at sites with a more specific code, or when the ulcer is staged and the stage is known. Do not use it for non-pressure wounds or ulcers of uncertain cause.
Coding tip
Confirm both the pressure-ulcer diagnosis and the exact anatomic site before assigning L89.890.