BlueCross BlueShield of Tennessee apparently does not pay for ETS at all, considering it "investigational". Here's their policy ,which cites 16 published studies:

Thoracic Sympathectomy for the Treatment of Hyperhidrosis

DESCRIPTION

Thoracic sympathectomy for the treatment of hyperhidrosis (excessive sweating) is performed by either an endoscopic or an open chest procedure. General anesthesia is used. The lung is collapsed to allow adequate space for the surgeon to maneuver. Sympathetic nerve ganglions, which transmit signals to the sweat glands, are removed or destroyed. The lung is then re-expanded and the surgical incisions closed.

POLICY

Thoracic sympathectomy (open or endoscopic) for the treatment of hyperhidrosis is considered investigational.

ADDITIONAL INFORMATION

Thoracic sympathectomy (open or endoscopic) for the treatment of hyperhidrosis does not meet the following technology evaluation criteria:

*

The scientific evidence must permit conclusions concerning the effect of the technology on health outcomes.
*

The technology must improve the net health outcome.