ICD-10 Code L89.126 – Pressure-induced deep tissue damage of left upper back (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L89.126 – Pressure-induced deep tissue damage of left upper back
What it is
This code identifies a pressure-related injury affecting the deep tissue of the left upper back. It is used when the skin may appear intact or only subtly changed, but underlying tissue damage is present.
Clinical signs
Findings may include localized pain, tenderness, discoloration, or a boggy, firm, or warmer area over the left upper back. Clinical features vary; refer to documentation.
When to use this code
Use L89.126 when the record clearly documents pressure-induced deep tissue damage at the left upper back site. You should assign it when the provider specifies deep tissue injury rather than a superficial pressure ulcer or another wound type.
Check documentation for laterality and exact anatomic location, since those details drive code selection. If the chart does not clearly support deep tissue damage, do not infer it from redness alone.
Do not use for
Do not use this code for uncomplicated redness, abrasions, or wounds not described as pressure-induced deep tissue damage. Do not guess the site if the documentation is vague; check documentation.
Coding tip
Confirm both the pressure injury stage/type and the exact left upper back location before coding.