ICD-10 Code H15.859 – Ring staphyloma, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H15.859 – Ring staphyloma, unspecified eye
What it is
Ring staphyloma is an abnormal outward bulging of the eye wall, forming a ring-shaped staphyloma. This code is used when the chart identifies the condition but does not specify the eye.
Clinical signs
Clinical features vary; refer to documentation. Typical findings include a visible localized scleral or corneal protrusion and ocular distortion on examination.
When to use this code
Use this code when the provider documents ring staphyloma and does not identify right or left eye. It also fits when the record confirms the diagnosis but gives no further laterality detail. If the note is unclear, check documentation before assigning the code.
Do not use for
Do not use this code for other staphylomas with a different site or for eye conditions that are not documented as ring staphyloma. Do not assume laterality when the record is incomplete.
Coding tip
Verify laterality in the ophthalmology note, because unspecified eye codes should be used only when the documentation truly lacks that detail.