The insurance plans entail different types of insurance policies. If a patient has an insurance plan added to his/her profile, and he/she chooses to pay the bill via insurance, it affects the billing. Depending on the insurance plan, the bill is generally divided into two parts one part is paid by the patient, and the other part is forwarded to the insurance company via the insurance claim. To gather an in-depth understanding of the insurance plan, please refer to the following document.
https://docs.google.com/document/d/1unrLHIg9tN50sav6fAx13Wb3QQx9owmpSVbxtr1LxJk/edit