ICD-10 Code H20.823 – Vogt-Koyanagi syndrome, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H20.823 – Vogt-Koyanagi syndrome, bilateral
What it is
This code identifies bilateral Vogt-Koyanagi syndrome, an inflammatory eye disorder affecting both eyes. It is used when documentation specifies the bilateral form of the condition.
Clinical signs
Clinical features vary; refer to documentation. Standard references describe bilateral ocular inflammation, often with uveitis, and associated systemic findings may be noted in Vogt-Koyanagi syndrome.
When to use this code
Use H20.823 when the provider documents Vogt-Koyanagi syndrome involving both eyes. It is appropriate for confirmed bilateral disease in ophthalmology or inpatient records. If the chart does not clearly state bilateral involvement, check documentation before coding.
Do not use for
Do not use this code for unilateral Vogt-Koyanagi syndrome or when the diagnosis is only suspected. If the record says “check documentation” or is nonspecific about laterality, you need clarification.
Coding tip
Verify laterality in the assessment or impression, because H20.823 is specific to bilateral disease.