ICD-10 Code L98.A223 – Non-pressure chronic ulcer of left forearm with necrosis of muscle (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.A223 – Non-pressure chronic ulcer of left forearm with necrosis of muscle
What it is
This code identifies a chronic, non-pressure ulcer on the left forearm with necrosis of muscle. Use it when documentation shows a persistent skin break in that location with muscle involvement.
Clinical signs
Typical findings include a chronic open ulcer, tissue breakdown, and documented necrosis extending to muscle. Clinical features vary; refer to documentation for the exact depth, laterality, and chronicity.
When to use this code
Use this code when the provider documents a non-pressure chronic ulcer on the left forearm and specifies necrosis of muscle. It fits wound assessments describing exposed or nonviable muscle tissue without pressure injury as the cause.
Choose it only when the site is clearly the left forearm and the ulcer is chronic, not acute. If the record does not confirm muscle necrosis or laterality, check documentation before assigning the code.
Do not use for
Do not use this code for pressure ulcers, acute wounds, or ulcers on another body site. Do not assume muscle necrosis unless the record states it clearly.
Coding tip
Verify both laterality and depth in the wound note; missing documentation can change the code selection.