ICD-10 Code L98.A126 – Non-pressure chronic ulcer of left upper arm with bone involvement without evidence of necrosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.A126 – Non-pressure chronic ulcer of left upper arm with bone involvement without evidence of necrosis
What it is
This code identifies a chronic, non-pressure ulcer on the left upper arm that extends to or involves bone, without necrotic tissue. Use it when documentation clearly supports both the site and the depth of involvement.
Clinical signs
Typical findings include a persistent open wound of the left upper arm with exposed or involved bone. Clinical features vary; refer to documentation for ulcer chronicity, depth, and whether necrosis is absent.
When to use this code
Use this code when the record specifies a chronic non-pressure ulcer of the left upper arm and states bone involvement without necrosis. It is appropriate when the provider documents the ulcer site, chronic nature, and depth clearly.
If the note only says “ulcer” or does not confirm bone involvement, check documentation before coding. You should also verify that the ulcer is non-pressure and not described as gangrenous or necrotic.
Do not use for
Do not use this code for pressure ulcers, acute wounds, or ulcers without documented bone involvement. Check documentation if necrosis is present or if the ulcer location is not the left upper arm.
Coding tip
Match the code to the exact wound site and depth; if bone involvement is not explicitly documented, do not assume it.