ICD-10 Code L98.A112 – Non-pressure chronic ulcer of right upper arm with fat layer exposed (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.A112 – Non-pressure chronic ulcer of right upper arm with fat layer exposed
What it is
This code identifies a chronic, non-pressure ulcer on the right upper arm that extends through the skin into the fat layer. It is used when documentation specifies both the location and the depth.
Clinical signs
Typical findings include a persistent open wound with visible subcutaneous tissue, delayed healing, and local drainage or tissue breakdown. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly states a chronic ulcer of the right upper arm and notes exposed fat layer. It is appropriate for non-pressure ulcers caused by another underlying process, not by pressure injury. You should confirm laterality and depth in the chart.
Do not use for
Do not use it for pressure ulcers, superficial skin loss, or ulcers without documentation of fat layer exposure. Check documentation if the site is not the right upper arm.
Coding tip
Assign the code only when the provider documents both chronicity and the ulcer depth; otherwise, query for clarification.