ICD-10 Code H05.311 – Atrophy of right orbit (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H05.311 – Atrophy of right orbit
What it is
H05.311 identifies atrophy, or wasting away, of the right orbit. Use it when documentation specifically states reduced orbital tissue or volume on the right side.
Clinical signs
Clinical features vary; refer to documentation. Findings may include a visibly sunken right eye area, asymmetry of the orbit, or imaging evidence of orbital tissue loss.
When to use this code
Use this code when the provider documents atrophy of the right orbit as the diagnosed condition. It may appear in ophthalmology or radiology records describing chronic orbital volume loss. Code the right side only when laterality is clearly stated.
Do not use for
Do not use it for general eye atrophy, enophthalmos, or unspecified orbital disorders unless the record confirms right orbital atrophy. Check documentation if the cause or side is unclear.
Coding tip
Always verify laterality in the note or imaging report before assigning H05.311.