Coders who take the following codingshortcuts can expect claim rejections or questions: • Listing unspecified codes (codes ending in "9") when a more detailed code is warranted; • Adding inappropriate digits as space holders (such as adding one or two zeros to a three-or four-digit number to create a five-digit code); and • Listing inappropriate primary diagnosis codes (such as reporting an acute fracture code when a V code actually represents the primary reason for home care).