ICD-10 Code H05.031 – Periostitis of right orbit (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H05.031 – Periostitis of right orbit
What it is
H05.031 identifies inflammation of the periosteum around the right orbit. Use it when documentation specifically names periostitis affecting the right eye socket.
Clinical signs
Clinical features vary; refer to documentation. Notes may describe localized orbital pain, tenderness, swelling, or signs of adjacent inflammatory disease on the right side.
When to use this code
Use this code when the provider documents periostitis of the right orbit as the diagnosed condition. It is appropriate for right-sided orbital periosteal inflammation that is clearly identified in the record.
If the note only mentions orbital inflammation, pain, or infection without specifying periostitis and laterality, check documentation before assigning H05.031. Code the documented condition as written.
Do not use for
Do not use this code for left, bilateral, or unspecified orbital periostitis. Do not use it when the record describes a different orbital disorder or when periostitis is not documented.
Coding tip
Always verify laterality and the exact wording in the provider note before coding H05.031.