ICD-10 Code L98.439 – Non-pressure chronic ulcer of abdomen with unspecified severity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.439 – Non-pressure chronic ulcer of abdomen with unspecified severity
What it is
This code identifies a chronic, non-pressure ulcer located on the abdomen when the severity is not documented. It applies to a persistent skin breakdown in that area that is not caused by pressure.
Clinical signs
Clinical features vary; refer to documentation. You may see an open abdominal skin lesion with delayed healing, drainage, or surrounding inflammation, but the record must support a chronic ulcer and abdominal location.
When to use this code
Use L98.439 when the provider documents a chronic non-pressure ulcer of the abdomen and does not specify severity. It is appropriate for outpatient or inpatient records that clearly identify the site and chronic nature. Check documentation if the note suggests another ulcer type or a different body location.
Do not use for
Do not use this code for pressure ulcers, surgical wounds, or acute skin injuries. If the ulcer site or severity is documented more specifically, code the documented detail instead.
Coding tip
If severity is missing, code the site-specific ulcer and query only when the documentation is unclear.