ICD-10 Code L98.419 – Non-pressure chronic ulcer of buttock with unspecified severity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.419 – Non-pressure chronic ulcer of buttock with unspecified severity
What it is
This code identifies a chronic ulcer on the buttock that is not caused by pressure. Use it when the record documents a non-pressure skin breakdown in that location, but severity or depth is not specified.
Clinical signs
Findings may include an open sore, persistent skin loss, drainage, or delayed healing over the buttock. Clinical features vary; refer to documentation for the ulcer’s appearance and whether infection or necrosis is present.
When to use this code
Use L98.419 when the provider documents a chronic non-pressure ulcer of the buttock and does not specify the severity level. It is appropriate for outpatient, inpatient, or wound-care records when the site is buttock and the cause is not pressure-related. If the note gives a more specific ulcer depth or stage, code that specificity instead.
Do not use for
Do not use this code for pressure ulcers, sacral ulcers, or ulcers at other body sites. If documentation is unclear about cause or location, check documentation before assigning L98.419.
Coding tip
Confirm both the anatomic site and that the ulcer is non-pressure before coding, since pressure injury codes and site-specific non-pressure ulcer codes are not interchangeable.