ICD-10 Code H44.521 – Atrophy of globe, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H44.521 – Atrophy of globe, right eye
What it is
H44.521 identifies atrophy of the right globe, meaning the eyeball has shrunk or wasted away. It is used when the right eye is specifically documented as the affected side.
Clinical signs
Typical findings include a small, shrunken eye with reduced ocular volume and visible structural loss. Clinical features vary; refer to documentation for the exact appearance and cause.
When to use this code
Use this code when the provider documents atrophy of the globe in the right eye, including terms such as phthisis or a shrunken globe if clearly linked to the right side. It may appear in records describing prior trauma, severe disease, or longstanding irreversible ocular damage. Check documentation if laterality is unclear.
Do not use for
Do not use this code for general vision loss, corneal disease, or other eye disorders without documented globe atrophy. If the record does not specify the right eye, do not assign H44.521.
Coding tip
Always confirm laterality and the exact wording in the ophthalmology note before assigning H44.521.