Which of the following is an example of a covered function under HIPAA?

The selection of electronic billing for health services as an example of a covered function under HIPAA is correct because it falls within the realm of administrative functions that handle protected health information (PHI). HIPAA, the Health Insurance Portability and Accountability Act, specifically applies to health care providers, health plans, and health care clearinghouses that transmit health information in electronic form. Electronic billing involves the use of PHI to process claims and obtain payments, thereby making it a critical function that must comply with HIPAA's privacy and security rules.

In contrast, conducting a workshop on nutrition, providing fitness training, and offering wellness programs do not inherently involve the handling of PHI in the same way. These activities can be considered health-related but are not classified as standard covered functions under HIPAA unless they are part of a larger service that requires the handling of electronic health information. Therefore, electronic billing directly aligns with HIPAA's scope, while the other options may not be primarily designed to address the regulations surrounding patient health information.