ICD-10 Code H05.331 – Deformity of right orbit due to trauma or surgery (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H05.331 – Deformity of right orbit due to trauma or surgery
What it is
Use this code for an abnormal change in the shape of the right orbit caused by prior trauma or surgery. It identifies a structural deformity, not an acute eye injury.
Clinical signs
Clinical features vary; refer to documentation. Commonly, records describe visible asymmetry, orbital contour change, or post-traumatic/postoperative bony alteration affecting the right eye socket.
When to use this code
Assign H05.331 when the provider documents a right orbital deformity and links it to trauma or a surgical procedure. Use it for chronic or residual anatomic change, including postoperative remodeling, if the right side is specified.
If the note only mentions orbital injury, swelling, or pain without deformity, this code is not supported. Check documentation for laterality and cause before coding.
Do not use for
Do not use this code for acute orbital fractures, soft tissue swelling, or unspecified orbital abnormality. It also does not fit left, bilateral, or unspecified orbit deformities.
Coding tip
Confirm the note states “right orbit” and documents trauma or surgery as the cause before selecting H05.331.