ICD-10 Code H05.321 – Deformity of right orbit due to bone disease (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H05.321 – Deformity of right orbit due to bone disease
What it is
This code identifies a deformity of the right orbit caused by an underlying bone disorder. Use it when the orbital shape is altered because of disease affecting bone structure.
Clinical signs
Clinical features may include visible asymmetry of the eye socket, orbital contour change, or displacement of the eye. Clinical features vary; refer to documentation.
When to use this code
Use H05.321 when the provider documents a right orbital deformity and links it to bone disease. It is appropriate when the record specifies a structural bony cause rather than a soft-tissue or traumatic orbital change.
If laterality is confirmed and the condition is described as due to bone disease, this code supports precise reporting. Check documentation when the cause, side, or anatomic site is unclear.
Do not use for
Do not use this code for traumatic orbital deformity, congenital facial anomalies, or nonspecific eye swelling. If the deformity is not documented as right-sided or bone-related, choose a different code.
Coding tip
Verify both laterality and the documented cause; “bone disease” must be stated or clearly implied in the record.