ICD-10 Code L98.A199 – Non-pressure chronic ulcer of unspecified upper arm with unspecified severity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.A199 – Non-pressure chronic ulcer of unspecified upper arm with unspecified severity
What it is
This code identifies a chronic, non-pressure ulcer located on the upper arm when the laterality and severity are not specified. Use it for a persistent skin break that is not caused by pressure injury.
Clinical signs
Typical findings include an open wound on the upper arm with delayed healing, drainage, or surrounding skin changes. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents a chronic ulcer of the upper arm but does not specify whether it is right or left, or does not state the depth or severity. It also fits when the record confirms a non-pressure ulcer and gives no additional detail. Check documentation if the note suggests a different ulcer site or cause.
Do not use for
Do not use this code for pressure ulcers, traumatic wounds, or ulcers with a documented different anatomic site. If the record specifies laterality or severity, code the more specific option instead.
Coding tip
Query for laterality, depth, and cause whenever the note says only “ulcer of upper arm.”