ICD-10 Code L89.131 – Pressure ulcer of right lower back, stage 1 (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L89.131 – Pressure ulcer of right lower back, stage 1
What it is
This code identifies a pressure ulcer on the right lower back that is limited to stage 1. Stage 1 means intact skin with localized redness over a bony area that does not blanch.
Clinical signs
Look for persistent erythema over the right lower back, usually over a pressure point, with skin still unbroken. Clinical features vary; refer to documentation for blanching status and exact location.
When to use this code
Use this code when the provider documents a stage 1 pressure injury specifically on the right lower back. It fits intact skin with redness only, not an open wound. Confirm laterality and site wording in the record before assigning the code.
Do not use for
Do not use it for pressure ulcers at other sites, unspecified laterality, or deeper stages with skin breakdown. Check documentation if the lesion is described as a different stage or as another type of skin injury.
Coding tip
Code only when the record clearly states both the right lower back location and stage 1; otherwise, check documentation.