ICD-10 Code H05.04 – Tenonitis of orbit (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H05.04 – Tenonitis of orbit
What it is
H05.04 identifies inflammation of Tenon’s capsule, the fascial layer surrounding the eyeball within the orbit. Use it when documentation specifically states tenonitis or inflammation of the orbital Tenon’s space.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings may include orbital pain, eye movement discomfort, redness, swelling, or localized tenderness, but you should code only what is documented.
When to use this code
Use H05.04 when the provider documents tenonitis of the orbit, Tenon’s capsule inflammation, or a closely equivalent diagnosis. It may appear in ophthalmology notes, imaging impressions, or specialist assessments. If the record only says orbital inflammation, check documentation for a more specific diagnosis.
Do not use for
Do not use this code for conjunctivitis, scleritis, uveitis, or nonspecific eye pain. If the diagnosis is another orbital disorder or the site is unclear, check documentation.
Coding tip
Code the condition only when the provider clearly links the inflammation to Tenon’s capsule or orbit.