ICD-10 Code L98.A398 – Non-pressure chronic ulcer of unspecified hand with other specified severity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.A398 – Non-pressure chronic ulcer of unspecified hand with other specified severity
What it is
This code identifies a chronic, non-pressure ulcer on the hand when the site is unspecified and the severity is described as other specified. Use it for a persistent skin break not caused by pressure.
Clinical signs
Typical findings include an open wound or ulcer on the hand with delayed healing and local tissue loss. Clinical features vary; refer to documentation for the exact depth, duration, and severity wording.
When to use this code
Use this code when the record documents a chronic ulcer of the hand, but does not specify left or right hand, and the provider describes the severity as other specified. It also fits when the ulcer is clearly non-pressure and chronic. If laterality or a more specific severity is documented, code that detail instead.
Do not use for
Do not use this code for pressure ulcers, acute wounds, or ulcers of a different anatomic site. Check documentation if the record identifies a more specific hand location or a different ulcer severity.
Coding tip
Verify the note supports both “unspecified hand” and “other specified severity” before assigning L98.A398.