ICD-10 Code L98.473 – Non-pressure chronic ulcer of groin with necrosis of muscle (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.473 – Non-pressure chronic ulcer of groin with necrosis of muscle
What it is
This code identifies a chronic, non-pressure ulcer located in the groin area with necrosis extending into muscle. It describes tissue loss from a cause other than pressure, and the documentation must support the groin site and muscle involvement.
Clinical signs
Clinical features may include an open groin wound that does not heal, visible tissue breakdown, and necrotic or dead muscle in the ulcer base. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents a chronic ulcer of the groin and specifies necrosis of muscle. It is appropriate for non-pressure ulcers only, such as wounds described as chronic, non-healing, or ulcerative with muscle involvement. Check documentation if the depth or location is unclear.
Do not use for
Do not use this code for pressure ulcers, acute wounds, or ulcers at another anatomic site. If the record does not clearly document necrosis of muscle, do not assume this depth.
Coding tip
Confirm both the groin location and the muscle necrosis in the provider note before assigning L98.473.