"I tried to put off surgery for as long as I could, but after consulting with my doctor, he advised that the best course of action was to have the procedure now," Kidd said in statement released by the team.
The Bucks are 11-18 this season and 52-59 in two seasons under Kidd.
SPORTS PHOTOS OF THE YEAR:
Best sports photos of the year 2015
Bucks coach Kidd out indefinitely for hip surgery
TORONTO, ON - OCTOBER 14: Jose Bautista #19 of the Toronto Blue Jays throws his bat up in the air after he hits a three-run home run in the seventh inning against the Texas Rangers in game five of the American League Division Series at Rogers Centre on October 14, 2015 in Toronto, Canada. (Photo by Tom Szczerbowski/Getty Images)
ARLINGTON, TX - OCTOBER 11: Quarterback Tom Brady #12 of the New England Patriots drops back to pass during the second half of the NFL game against the Dallas Cowboys at AT&T Stadium on October 11, 2015 in Arlington, Texas. The Patriots defeated the Cowboys 30-6. (Photo by Christian Petersen/Getty Images)
MELBOURNE, AUSTRALIA - NOVEMBER 15: (R-L) Holly Holm kicks Ronda Rousey in their UFC women's bantamweight championship bout during the UFC 193 event at Etihad Stadium on November 15, 2015 in Melbourne, Australia. (Photo by Jeff Bottari/Zuffa LLC/Zuffa LLC via Getty Images)
ANAHEIM, CA - MAY 31: Matt Shoemaker #52 of the Los Angeles Angels pitches to the Detroit Tigers during the second inning at Angel Stadium of Anaheim on May 31, 2015 in Anaheim, California. (Photo by Harry How/Getty Images)
UNIONDALE, NY - MARCH 29: Tyler Kennedy #26 of the New York Islanders skates in warm-ups prior to the game against the Detroit Red Wings at the Nassau Veterans Memorial Coliseum on March 29, 2015 in Uniondale, New York. The Islanders defeated the Red Wings 5-4. (Photo by Bruce Bennett/Getty Images)
DAYTON, OH - MARCH 18: Kyle Davis #3 of the Dayton Flyers goes to the basket against Chandler Hutchison #15 of the Boise State Broncos during the first round of the 2015 NCAA Men's Basketball Tournament at UD Arena on March 18, 2015 in Dayton, Ohio. (Photo by Joe Robbins/Getty Images)
LONG POND, PA - AUGUST 02: Brad Keselowski, driver of the #2 Alliance Truck Parts Ford, crashes into his crew on pit road during the NASCAR Sprint Cup Series Windows 10 400 at Pocono Raceway on August 2, 2015 in Long Pond, Pennsylvania. (Photo by Chris Trotman/Getty Images)
INNSBRUCK, AUSTRIA - JANUARY 04: Nicholas Fairall of the USA competes on his first jump on day 6 of the Four Hills Tournament Ski Jumping event at Bergisel-Schanze on January 4, 2015 in Innsbruck, Austria. (Photo by Alexander Hassenstein/Bongarts/Getty Images)
KAZAN, RUSSIA - AUGUST 03: Carlos Gimeno of Spain competes in the Men's High Diving 27m preliminary round on day ten of the 16th FINA World Championships at the Kazanka River on August 3, 2015 in Kazan, Russia. (Photo by Matthias Hangst/Getty Images)
BEIJING, CHINA - AUGUST 23: Usain Bolt of Jamaica (R) wins gold ahead of (bottom to top) Justin Gatlin of the United States, Tyson Gay of the United States, Mike Rodgers of the United States and Trayvon Bromell of the United States during the Men's 100 metres final during day two of the 15th IAAF World Athletics Championships Beijing 2015 at Beijing National Stadium on August 23, 2015 in Beijing, China. (Photo by Ian Walton/Getty Images)
LOS ANGELES, CA - OCTOBER 10: Ruben Tejada #11 of the New York Mets is hit by a slide by Chase Utley #26 of the Los Angeles Dodgers in the seventh inning in an attempt to turn a double play in game two of the National League Division Series at Dodger Stadium on October 10, 2015 in Los Angeles, California. (Photo by Sean M. Haffey/Getty Images)
LONDON, ENGLAND - JULY 11: Serena Williams of the United States leaves court with the Venus Rosewater Dish after her victory in the Final Of The Ladies' Singles against Garbine Muguruza of Spain during day twelve of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 11, 2015 in London, England. (Photo by Julian Finney/Getty Images)
GLENDALE, AZ - FEBRUARY 01: Tom Brady #12 of the New England Patriots is surrounded by the media after defeating the Seattle Seahawks 28-24 during Super Bowl XLIX at University of Phoenix Stadium on February 1, 2015 in Glendale, Arizona. (Photo by Tom Pennington/Getty Images)
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Prunty has 20 years of NBA coaching experience, including three under Kidd. He served as an assistant during Kidd's one season coaching the Brooklyn Nets and has been with Kidd in Milwaukee the past two seasons. Prunty also is the head coach of Britain's national team.
"I have every confidence in Joe to lead our team during my absence," Kidd said. "Joe has many years of coaching experience both in the NBA and in international competition. He's well-respected in the league and I know our players and coaches will give their all during Joe's time as head coach."