ICD-10 Code L98.A312 – Non-pressure chronic ulcer of right hand with fat layer exposed (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.A312 – Non-pressure chronic ulcer of right hand with fat layer exposed
What it is
This code identifies a chronic, non-pressure ulcer on the right hand with exposed subcutaneous tissue. Use it when the record shows an open wound that is not caused by pressure injury.
Clinical signs
Typical findings include a persistent open lesion on the right hand with visible fat layer and delayed healing. Clinical features vary; refer to documentation for size, depth, drainage, or surrounding skin changes.
When to use this code
Use this code when the provider documents a chronic ulcer of the right hand and specifically states fat layer exposure. It applies to non-pressure ulcers, including wounds described as chronic, nonhealing, or ulcerative. If laterality or depth is not clear, check documentation before coding.
Do not use for
Do not use this code for pressure ulcers, traumatic wounds, or superficial skin breakdown without fat layer exposure. If the site is not the right hand, or the ulcer depth is different, choose the documented code instead.
Coding tip
Confirm both laterality and depth in the note; missing either detail can change the final code.