Which of the following is considered an improper claim in medical billing?

Billing for services not performed is considered an improper claim in medical billing because it constitutes fraudulent activity. Medical billing is built upon the principle that providers should only bill for services that have actually been rendered to patients. This system relies on trust and the integrity of healthcare professionals to accurately report the services they provide. When a provider bills for services that were never provided, it misrepresents the care delivered and can lead to significant legal consequences, including penalties and loss of licensure.

In contrast, billing for approved medical services, necessary follow-up care, and services covered by insurance policies reflects accurate and legitimate medical practice. These claims adhere to established guidelines and represent services that are essential for patient care and well-being, thus maintaining the integrity of medical billing.