ICD-10 Code L98.452 – Non-pressure chronic ulcer of neck with fat layer exposed (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.452 – Non-pressure chronic ulcer of neck with fat layer exposed
What it is
This code identifies a chronic, non-pressure ulcer on the neck where the wound extends into the subcutaneous fat layer. Use it when the record clearly documents a neck ulcer without pressure as the cause.
Clinical signs
Typical findings include an open, persistent skin break on the neck with visible fat tissue or documentation of fat layer exposure. Clinical features vary; refer to documentation.
When to use this code
Use L98.452 when the provider documents a chronic ulcer of the neck and specifies that the fat layer is exposed. It applies to non-pressure ulcers, not pressure injuries, and should match the recorded wound depth and location. Check documentation if the site or depth is unclear.
Do not use for
Do not use this code for pressure ulcers, superficial ulcers, or wounds without documented fat layer exposure. If the note does not confirm the neck site or chronicity, check documentation.
Coding tip
Confirm both the anatomic site and ulcer depth in the provider note before assigning L98.452.