ICD-10 Code H20.829 – Vogt-Koyanagi syndrome, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H20.829 – Vogt-Koyanagi syndrome, unspecified eye
What it is
H20.829 identifies Vogt-Koyanagi syndrome when the eye affected is not otherwise specified. Use it for a documented uveitic or ocular manifestation of this multisystem inflammatory condition.
Clinical signs
Clinical features vary; refer to documentation. Eye findings may include uveitis, ocular inflammation, or vision changes associated with Vogt-Koyanagi syndrome.
When to use this code
Use this code when the provider documents Vogt-Koyanagi syndrome and does not specify which eye is involved. It is appropriate for encounter notes describing ocular disease tied to the syndrome without laterality detail. Check documentation if the record names a specific eye or a different uveitis diagnosis.
Do not use for
Do not use H20.829 if the chart specifies right, left, or bilateral eye involvement. Also avoid it when Vogt-Koyanagi syndrome is not documented or when another eye disorder is clearly identified.
Coding tip
Verify laterality in the ophthalmology note before assigning this unspecified-eye code.