ICD-10 Code L98.A322 – Non-pressure chronic ulcer of left hand with fat layer exposed (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.A322 – Non-pressure chronic ulcer of left hand with fat layer exposed
What it is
This code identifies a chronic, non-pressure ulcer on the left hand with exposed fat layer. Use it when documentation shows a persistent open skin lesion that is not caused by pressure.
Clinical signs
Typical findings include a chronic open wound on the left hand with visible subcutaneous fat or a documented fat layer exposure. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents a non-pressure chronic ulcer specifically on the left hand and notes fat layer exposure. It fits chronic wounds that are not pressure-related and are not described by a more specific site or depth code. Check documentation if the laterality or depth is unclear.
Do not use for
Do not use it for pressure ulcers, acute wounds, or ulcers without documented chronicity. Avoid it if the lesion is on another hand site or if fat layer exposure is not stated.
Coding tip
Verify both laterality and wound depth in the note before assigning L98.A322.