ICD-10 Code L98.435 – Non-pressure chronic ulcer of abdomen with muscle involvement without evidence of necrosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.435 – Non-pressure chronic ulcer of abdomen with muscle involvement without evidence of necrosis
What it is
This code identifies a chronic, non-pressure ulcer on the abdomen that extends into muscle but does not show necrosis. Use it when the documentation specifies both the abdominal location and muscle involvement.
Clinical signs
Typical documentation may describe a persistent open ulcer with depth reaching muscle tissue. Clinical features vary; refer to documentation for wound size, drainage, and whether necrotic tissue is absent.
When to use this code
Use L98.435 when the provider documents a chronic abdominal ulcer with muscle involvement and explicitly states there is no evidence of necrosis. It applies to non-pressure ulcers, not pressure injuries. If the record only says “ulcer” or does not confirm depth, check documentation.
Do not use for
Do not use this code for pressure ulcers, ulcers without muscle involvement, or ulcers with necrosis. If the site is not the abdomen or the documentation is unclear, check documentation.
Coding tip
Confirm both the anatomic site and the deepest tissue level documented before assigning L98.435.