ICD-10 Code L89.140 – Pressure ulcer of left lower back, unstageable (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L89.140 – Pressure ulcer of left lower back, unstageable
What it is
This code identifies a pressure ulcer on the left lower back whose depth cannot be determined because slough or eschar covers the wound base. Use it when the location is documented and the stage is unstageable.
Clinical signs
The area usually appears as an open wound or pressure-related skin loss with dead tissue obscuring the base. Clinical features vary; refer to documentation for the wound location and whether staging was deferred.
When to use this code
Use L89.140 when the record specifically states a pressure ulcer of the left lower back and the provider documents it as unstageable. This applies when the wound cannot be staged because the base is covered by slough or eschar. If the site, laterality, or stage is unclear, check documentation before coding.
Do not use for
Do not use this code for non-pressure wounds, moisture-associated skin damage, or ulcers at a different back location. Do not assign it when the ulcer stage is known or when documentation does not support unstageable status.
Coding tip
Confirm both laterality and exact anatomic site in the note before selecting L89.140.