ICD-10 Code L98.A21 – Non-pressure chronic ulcer of right forearm (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.A21 – Non-pressure chronic ulcer of right forearm
What it is
This code identifies a chronic, non-pressure ulcer located on the right forearm. It is used when the wound is not caused by pressure injury and the record specifies the right forearm site.
Clinical signs
Typical findings include an open skin lesion that persists over time, with localized tissue breakdown on the right forearm. Clinical features vary; refer to documentation for depth, drainage, pain, infection, or surrounding skin changes.
When to use this code
Use this code when the documentation clearly states a chronic ulcer of the right forearm and excludes pressure as the cause. It fits outpatient, inpatient, or wound-care records when the site and chronic nature are confirmed. If the laterality or cause is unclear, check documentation.
Do not use for
Do not use it for pressure ulcers, acute wounds, or ulcers on a different arm or body site. Do not assign it if the record does not support a chronic non-pressure ulcer diagnosis.
Coding tip
Verify both chronicity and right-sided location before coding, and match the ulcer cause to the provider’s documentation.