ICD-10 Code L98.A192 – Non-pressure chronic ulcer of unspecified upper arm with fat layer exposed (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.A192 – Non-pressure chronic ulcer of unspecified upper arm with fat layer exposed
What it is
This code identifies a chronic, non-pressure ulcer on the unspecified upper arm with exposed fat layer. Use it when documentation shows a full-thickness skin loss on that site, but no pressure injury is described.
Clinical signs
Findings usually include an open ulcer with visible subcutaneous fat, chronic nonhealing skin breakdown, and localized tissue loss. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly states a chronic ulcer of the upper arm and specifies fat layer exposure, but does not identify the side. It applies to non-pressure ulcers only. If the note says “unspecified upper arm,” you should not assume laterality.
Do not use for
Do not use this code for pressure ulcers, superficial skin wounds, or ulcers without exposed fat layer. Check documentation if the site, depth, or cause is unclear.
Coding tip
Confirm both the anatomic site and ulcer depth in the provider note before assigning L98.A192.