M12.2 - Villonodular synovitis (pigmented)
M12.21 - Villonodular synovitis (pigmented), shoulder
M12.211 - Villonodular synovitis (pigmented), right shoulder
M12.212 - Villonodular synovitis (pigmented), left shoulder
M12.219 - Villonodular synovitis (pigmented), unspecified shoulder