Modifiers are two-character suffixes (alpha and/or numeric) that are attached to a procedure code. CPT modifiers are defined by the American Medical Association (AMA). HCPCS Level II modifiers are. defined by the Centers for Medicare and Medicaid Services (CMS).
1 Most desktop computers do not include a monitor. 2  See: How Much Does a Computer Monitor Cost. 3  While most desktops include at least a basic mouse and keyboard, some users prefer to upgrade. 4  A wireless keyboard costs from about $20 to over $200, a wireless mouse from about $20 to $100 or more. For those home office and general-purpose users with limited space, small form or all-in-one desktop computers cost from $1,100 to $2,100. 2  An all-in-one desktop unit hides the processor, memory and hard drive either in the base or behind the integrated flat-screen monitor.
1 In the $400 to $600 range, it's possible to find a desktop computer with a higher-end dual core processor. 2  A dual-core CPU effectively means the computer combines multiple processors in one for higher performance.dditional costs: 1  A typical desktop PC will come with a keyboard, a mouse and necessary cables to start using the computer. 2  The computer typically will have at least one CD or DVD ROM drive. 3  It should come with Windows XP, Vista or the new Windows 7 (or Macintosh OS X Leopard) software, and basic applications.