UPDATE 1-Smith & Nephew receives Exogen subpoena

* Believes similar inquiries directed at competitors

* Also facing questions over marketing of bone product (Adds details)

LONDON, April 16 (Reuters) - Smith & Nephew SN.L, Europe's leading medical devices company, has received a subpoena from the U.S. Department of Justice over its ultrasound stimulation product Exogen.

Officials have asked for documents relating to Exogen and other matters from 1995 onwards, the company said in a statement on Thursday, adding that it believes similar inquiries were directed at its competitors.

The company added that along with other U.S. manufacturers, it also faces questions over sales and marketing of bone growth stimulation products.

It is not the first time that the company has been under investigation in the United States.

In September 2007, Zimmer ZMH.N, Johnson & Johnson JNJ.N unit DePuy Orthopaedics, Smith & Nephew and Biomet, owned by a group of investment firms including Blackstone Group BX.N, agreed to pay civil settlements and avoid criminal prosecution by agreeing to reforms over consulting fees. [ID:nN10472537]

Prosecutors had accused the companies of using consulting deals with orthopedic surgeons as inducements to use their products.

Reporting by Ben Deighton; Editing by Ben Hirschler