ICD-10 Code L98.442 – Non-pressure chronic ulcer of chest with fat layer exposed (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.442 – Non-pressure chronic ulcer of chest with fat layer exposed
What it is
This code identifies a chronic, non-pressure ulcer on the chest that extends through the skin and exposes subcutaneous fat. It is used when the wound is not caused by pressure injury and the chest location is documented.
Clinical signs
Expect a persistent open sore with visible fat layer, often with drainage, delayed healing, or surrounding skin breakdown. Clinical features vary; refer to documentation.
When to use this code
Use L98.442 when the record clearly states a chronic non-pressure ulcer of the chest and specifies fat layer exposure. You should code it when the site and depth are documented, even if the underlying cause is not fully described. Check documentation if laterality or etiology is unclear.
Do not use for
Do not use this code for pressure ulcers, acute wounds, or ulcers at other body sites. Do not assign it if the chart only says “skin breakdown” or does not confirm fat layer exposure.
Coding tip
Verify both the chest location and the depth before coding, because missing depth detail can change the code selection.