ICD-10 Code L98.A1 – Non-pressure chronic ulcer of upper arm (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.A1 – Non-pressure chronic ulcer of upper arm
What it is
This code identifies a chronic, non-pressure ulcer located on the upper arm. It describes a persistent open skin lesion that is not caused by pressure injury.
Clinical signs
Typical findings include a nonhealing skin break, drainage, granulation tissue, or surrounding inflammation. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents a chronic ulcer specifically on the upper arm and states it is non-pressure related. It may apply to long-standing wounds that remain open despite routine care. Check documentation for laterality, depth, and any associated conditions if recorded.
Do not use for
Do not use this code for pressure ulcers, acute traumatic wounds, or ulcers in another anatomic site. If the record does not clearly identify the ulcer as chronic and non-pressure, check documentation.
Coding tip
Confirm the exact site and ulcer type in the note before assigning L98.A1.