This publication supports what Techskater was saying. It looks like Adult Pre-bronze, Bronze and Silver still offer the choice of step sequence or spiral sequence (not choreo sequence):
http://www.usfigureskating.org/content/TN%20111%20Adult%20Singles%20Choreographic%20Sequence.pdf*If* you are Adult Gold or Masters, your balanced program rules for the 2013 season are here:
http://www.usfsa.org/content/AdultSinglesWBPChart.pdfIf your level gives you the option of either a step sequence or choreo sequence, here's the definition of a choreo sequence (an "unlisted jump" means any jump other than a toeloop, salchow, loop, flip, lutz or axel):
A Choreographic Sequence consists of any kind of movements like steps, turns, spirals, arabesques, spread eagles, Ina Bauers, hydroblading, transitional (unlisted) jumps, spinning movements etc. A Choreographic Sequence for Ladies must include at least one spiral (not a kick) of any length. A Choreographic Sequence for Pairs must include at least one spiral (not a kick) of any length by each partner. The Sequence commences with the first move and is concluded with the last move of the skater. The pattern is not restricted, but the Sequence must fully utilize the ice surface.