Final answer:
Color coding is the assignment of color to primary patient numbers or letters used for filing the paper patient record.
Step-by-step explanation:
In a paper record system, color coding is indeed the assignment of color to primary patient numbers or letters used for filing the paper patient record. This helps in organizing and retrieving patient records more efficiently.
For example, one could assign a specific color to each letter of the alphabet or each number, making it easier to spot and locate records based on the assigned color.