ICD-10 Code L98.446 – Non-pressure chronic ulcer of chest with bone involvement without evidence of necrosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.446 – Non-pressure chronic ulcer of chest with bone involvement without evidence of necrosis
What it is
This code identifies a chronic, non-pressure ulcer on the chest that extends to bone, with no necrotic tissue documented. Use it when the record clearly shows bone involvement and does not describe pressure as the cause.
Clinical signs
Typical findings include a persistent open wound on the chest with visible or documented extension to bone. Clinical features vary; refer to documentation for depth, chronicity, and whether necrosis is absent.
When to use this code
Use L98.446 when the provider documents a chronic ulcer of the chest and specifically states bone involvement without necrosis. This supports coding for a non-pressure ulcer site on the chest, not a pressure injury or an acute wound. Check documentation if depth, cause, or necrosis status is unclear.
Do not use for
Do not use this code for pressure ulcers, acute traumatic wounds, or ulcers at another body site. If necrosis is documented, or bone involvement is not confirmed, check documentation before assigning this code.
Coding tip
Confirm both the anatomic site and the phrase “with bone involvement without evidence of necrosis” in the provider note.