Which of the following actions by a billing and coding specialist ensures a patient's health information is protected?

Using data encryption software on office workstations is a crucial action taken by billing and coding specialists to protect a patient's health information. Data encryption transforms sensitive information into a code that can only be deciphered by those with the correct decryption key. This makes it significantly more difficult for unauthorized individuals to gain access to the information, thus safeguarding patient data against breaches and cyber threats.

While other actions, such as storing paper records in a locked drawer and limiting access to billing software, also contribute to protecting health information, they focus primarily on physical security and access control. These methods are essential but are more effective when combined with comprehensive digital security measures like encryption. The use of personal devices for work purposes could potentially expose sensitive information to additional risks, making it an unsuitable option for ensuring patient confidentiality.