ICD-10 Code H05 – Disorders of orbit (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H05 – Disorders of orbit
What it is
H05 covers disorders affecting the bony eye socket and its surrounding tissues. Use it for orbital conditions when the record does not support a more specific diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include eye pain, swelling, protrusion, restricted movement, or visible orbital mass, depending on the underlying disorder.
When to use this code
Use H05 when the provider documents an orbital disorder but does not identify a narrower code. It may apply to conditions involving the orbit itself, including inflammatory, structural, or other unspecified orbital problems. Check documentation for laterality and specificity.
Do not use for
Do not use H05 for eyelid, conjunctival, corneal, or optic nerve conditions. If the diagnosis is more specific, code that condition instead.
Coding tip
Review the note for the exact orbital diagnosis and laterality before assigning the unspecified category.