Electroretinography (ERG)

Electroretinography (full-field ERG and mfERG) is covered to evaluate retinal function and to distinguish retinal versus optic nerve pathology, including a range of toxic, vascular, autoimmune, hereditary, and traumatic retinal conditions; mfERG is also covered to confirm suspected chloroquine/hydroxychloroquine toxicity per AAO guidance. Use of ERG (all forms including PERG and mfERG) for glaucoma diagnosis or management is considered experimental/investigational and is not covered. Testing must be performed under general supervision and interpreted by a qualified physician, and claims must include appropriate ICD-10 diagnosis codes supporting medical necessity.

"ERG is covered to detect loss of retinal function or to distinguish retinal lesions from optic nerve lesions."

Sign up to see full coverage criteria, indications, and limitations.