Overcome unraveling of CPT's numeric conventions with these tips. Starting Jan. 1, you won't always find specific codes where you expect them -- and using an unspecified code when a specific code is available could compromise your pay. That's why CPT 2010 introduces the new # symbol to alert you to an out-of-order code. The "#" works like a flashing yellow light: Get Familiar With # for Numerical Order Disruption When you're coding a lesion excision, you usually assume the code number increases by one as the excision's size class goes up. But that truism will no longer hold true. Fortunately, watching for # will alert you to these inconsistencies Example: • 21555 -- Excision, tumor, soft tissue of neck or anterior thorax, subcutaneous; less than 3 cm • #21552 -- ... 3 cm or less 21556 -- Excision, tumor, soft tissue of neck or anterior thorax, deep, subfascial, (e.g., less than 5 cm) • #21554 -- ... 5 cm or greater • 21557 -- Radical resection of tumor (e.g., malignant neoplasm), soft tissue of neck or anterior thorax; less than 5 cm. "Before the new code symbol, we added a new symbol so you readily identify out-of-number codes," Peter A. Hollmann, MD, said in the symposium's final session of the day, "CPT 2010 Resequencing Principles." Follow the Road Signs to Relocated Code The AMA's also got a new method of relocating an existing out-of-order code. Rather than deleting the code and creating a new number with the same or similar definition, the AMA will move the code to its more appropriate location and leave a road sign for you. "Where you would expect the code to be, we added references referring to the code's new place," Hollmann says. Example: • 46221 -- Hemorrhoidectomy, internal, by rubber band ligation(s) • # 46945 -- Hemorrhoidectomy, internal, by ligation other than rubber band; single hemorrhoid column/group • # 46946 -- ... 2 or more hemorrhoid columns/groups • # 46220 -- Excision of single external papilla ortag, anus. • 46230 -- Excision of multiple external papillae or tags, anus • # 46320 -- Excision of thrombosed hemorrhoid, external. Identifying out-of-sequence codes with # isn't the only guidance CPT provides. Numerical order reference helps out: