ICD-10 Code L98.A194 – Non-pressure chronic ulcer of unspecified upper arm with necrosis of bone (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.A194 – Non-pressure chronic ulcer of unspecified upper arm with necrosis of bone
What it is
This code identifies a chronic, non-pressure ulcer on the upper arm when the site is unspecified and the wound extends to necrosis of bone. Use it when the record clearly documents bone involvement without a pressure-injury cause.
Clinical signs
Typical findings include a persistent open ulcer with exposed or necrotic bone in the upper arm. Clinical features vary; refer to documentation for wound depth, chronicity, and whether infection or other complications are noted.
When to use this code
Use this code when the provider documents a chronic non-pressure ulcer of the upper arm and specifies necrosis of bone, but does not identify left or right side. It fits outpatient, inpatient, or wound-care records when the diagnosis is explicit.
If the chart only says “upper arm ulcer” or does not confirm bone necrosis, check documentation before coding. You should also verify that the ulcer is not described as pressure-related or due to another specific cause.
Do not use for
Do not use this code for pressure ulcers, traumatic wounds, or ulcers limited to skin or fat without bone necrosis. Do not assign it if the side is documented as left or right and a more specific code is available.
Coding tip
Confirm both the non-pressure etiology and the bone necrosis detail before assigning L98.A194.