ICD-10 Code L98.431 – Non-pressure chronic ulcer of abdomen limited to breakdown of skin (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.431 – Non-pressure chronic ulcer of abdomen limited to breakdown of skin
What it is
This code identifies a chronic, non-pressure ulcer on the abdomen that extends only to the breakdown of the skin. Use it when the wound is not caused by pressure and is limited to superficial skin loss.
Clinical signs
Typical findings include an open abdominal skin ulcer with superficial tissue loss, drainage, or crusting. Clinical features vary; refer to documentation for depth, location, and whether the ulcer is chronic.
When to use this code
Use L98.431 when the record clearly documents a chronic non-pressure ulcer of the abdomen and states that the wound is limited to skin breakdown. You may see this in wound care notes, surgical follow-up, or chronic skin lesion documentation. Confirm the abdominal site and that no deeper tissue is involved.
Do not use for
Do not use this code for pressure ulcers, surgical wounds, or ulcers extending into fat, muscle, or bone. Check documentation if the cause, site, or depth is unclear.
Coding tip
Verify both the anatomic site and ulcer depth before assigning this code.