The symbol 'O' in CPT indicates which of the following?

• A. New code
• B. Deleted code
• C. Reinstate or recycled code
• D. End code

Answer: (C)

In CPT coding, symbols beside codes tell you the status of that code. The symbol O flags a code that has been reinstated or recycled. This means the code was previously deleted and later brought back into use, or it was reintroduced due to updates in guidelines or coverage decisions. When you see this symbol, verify the code’s current applicability for the year you’re coding and ensure the description matches the service you performed, since reinstated codes can reflect changes in how procedures are defined or billed. This is different from a genuinely new code (which signals first-time introduction) or a deleted code (which is no longer in use). The “reinstated or recycled” status helps maintain continuity with past coding practices while aligning with current guidelines.