ICD-10 Code H47.329 – Drusen of optic disc, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H47.329 – Drusen of optic disc, unspecified eye
What it is
H47.329 identifies optic disc drusen in an unspecified eye. These are calcified deposits at the optic nerve head that may be found incidentally on eye examination.
Clinical signs
Findings may include an elevated, lumpy optic disc, blurred disc margins, or visual field defects. Clinical features vary; refer to documentation.
When to use this code
Use this code when the clinician documents drusen of the optic disc but does not specify the eye involved. It is also appropriate when the condition is confirmed by examination or imaging and no laterality is recorded. If the note identifies right or left eye, use the laterality-specific code instead.
Do not use for
Do not use this code for optic disc edema, papilledema, or other optic nerve disorders without documented drusen. Check documentation if the record only mentions a suspicious optic disc appearance.
Coding tip
Always verify laterality; unspecified eye codes should be used only when the record truly lacks right- or left-eye detail.