ICD-10 Code L98.454 – Non-pressure chronic ulcer of neck with necrosis of bone (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.454 – Non-pressure chronic ulcer of neck with necrosis of bone
What it is
This code identifies a chronic, non-pressure ulcer on the neck with bone necrosis. Use it when documentation shows a persistent open lesion in the neck area and the underlying bone is dead or devitalized.
Clinical signs
Typical findings include a non-healing ulcer with exposed or affected bone, local tissue breakdown, and chronic wound changes. Clinical features vary; refer to documentation.
When to use this code
Use L98.454 when the record clearly states a chronic ulcer of the neck and specifies necrosis of bone. Apply it for outpatient, inpatient, or wound-care documentation that supports the site and depth. If the note only says “ulcer” without bone involvement, check documentation.
Do not use for
Do not use this code for pressure ulcers, acute wounds, or ulcers at another body site. If bone necrosis is not documented, or the location is unclear, check documentation.
Coding tip
Code the ulcer only when the neck site and bone necrosis are both explicitly documented.