ICD-10 Code L98.A323 – Non-pressure chronic ulcer of left hand with necrosis of muscle (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.A323 – Non-pressure chronic ulcer of left hand with necrosis of muscle
What it is
This code identifies a chronic, non-pressure ulcer on the left hand that extends into muscle tissue. It is used when documentation shows tissue loss with muscle necrosis, not a pressure injury.
Clinical signs
Typical findings include a persistent open wound on the left hand with necrotic muscle tissue and delayed healing. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents a chronic ulcer of the left hand and specifies necrosis of muscle. It fits non-pressure ulcers, such as those from vascular, traumatic, or other non-pressure causes. Confirm laterality and depth in the record.
Do not use for
Do not use this code for pressure ulcers, acute wounds, or ulcers without documented muscle necrosis. Check documentation if the site is not the left hand.
Coding tip
Code only when the record clearly supports chronicity, left-hand location, and muscle involvement.