Corneal Pachymetry (CPB 0681, reviewed 2026-10-26)
This is Aetna's clinical policy bulletin on ultrasound corneal pachymetry (corneal thickness measurement), CPB 0681, last reviewed October 26, 2026. It lists the indications where the test is considered medically necessary, the uses Aetna considers experimental, and a limit of one repeat test every six months for corneal diseases and injuries. The text does not describe a new rule with a stated effective date, so treat it as current policy language and confirm with Aetna before relying on it.