LEARNING OBJECTIVES | PROCEDURES |
U.S. Mail | |
1. Identify the function of the U.S. Postal Service (USPS). 2. State the purpose of the ZIP and ZIP+4 systems. 3. Describe the use of the following USPS mail classifications: Express Mail, Priority Mail, First-Class Mail, Standard Mail, and classifications used for packages. 4. Correlate available insurance and delivery confirmation services to their appropriate use in the medical office. |
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Other Package Delivery Services | |
Processing Incoming Mail | |
Process incoming mail. | |
Preparing Envelopes for Mailing | |
Look up a ZIP code for automated processing. | |
Prepare envelopes for mailing. | |
Introduction to Mail and Shipping
Mail communication is an important aspect of the efficient operation of the medical office. Every day the medical assistant processes incoming mail to facilitate delivery to physicians and other employees in the medical office. Preparing outgoing mail is also important. Most of this chapter is devoted to the services and postal addressing standards of the U.S. Postal Service (USPS), which is used to send the bulk of outgoing mail.
U.S. Postal System
The USPS is an independent agency with an official monopoly on the delivery of mail within the United States. It is financed primarily through the sale of postage and postage stamps. The postal service processes more than 563 million pieces of mail daily and is one of the largest employers in the United States. The USPS provides a variety of ways for mail to be transported from sender to receiver. The cost of these various services depends on the urgency with which mail must be received, as well as any special handling services provided.
ZIP Code and Bar Code Systems
In 1963 the USPS introduced the Zone Improvement Plan (ZIP) code system. This system enables the postal service to process mail more accurately, quickly, and economically with automated equipment. A ZIP code consists of a five-digit code that identifies the post office to which a piece of mail is to be delivered. In 1967 it became mandatory to use the ZIP code for second- and third-class bulk mailing.
The ZIP+4 code, which was introduced in 1983, consists of the original five-digit code followed by a hyphen and four additional digits. These digits identify a specific geographic segment within the five-digit delivery area, such as a city block, an office building, or a group of post office boxes. The plus-four code is required for certain presorted mailings. The USPS maintains a ZIP code lookup service that makes it easy to use the Internet to look up the ZIP+4 code for any address in the United States.
For bulk mailing, the ZIP code is translated into a postal bar code that is printed on the piece of mail by the sender. A computer program is used to add the bar code to pieces of mail, mailing labels, and mailing lists. For ordinary letters, the postal service may add the postal bar code because it makes the mail easier to sort. Unlike supermarket bar codes, which consist of wide and narrow bars, the postal bar code consists of long and short bars. Each individual digit in the ZIP code is represented by five bars, and a check digit is used after the ZIP code or ZIP+4 code. The postal bar code may be printed in the address block above or below the mailing address. When not included in the address block, the postal bar code is placed in the barcode clear zone, a blank rectangular area at the lower right of the card or envelope (Figure 43-1).
Classifications of Domestic Mail
Domestic mail includes mail that is collected and distributed within, among, and between the United States, its territories and possession, the military service, and the United Nations. Classifications are based on speed of delivery, weight of individual pieces of mail, and number of pieces of mail in the mailing.
Express Mail
Express Mail received by the post office before 5 PM is delivered within 24 hours, and by noon to most major cities, including on weekends and holidays. It includes letters and packages weighing up to 70 pounds. Envelopes and packing materials are available from the post office. Medical offices may use Express Mail to send laboratory specimens to an outside laboratory for testing. The postage rates for Express Mail are considerably higher than other rates, but they do include insurance against loss or damage.
First-Class Mail
First-Class Mail is used for letters or other lightweight items up to 13 ounces. The postage is based on weight, with a base rate for one ounce and additional postage for each additional ounce. The medical office uses this mail classification to send letters, postcards, patient statements, and some insurance claim forms.
Sending an item First Class usually results in overnight service to local cities and second-day service nationwide. Delivery by the third day can be anticipated for some outlying areas. All First-Class Mail should be sealed, and it may not be opened for postal inspection without a federal search warrant.
Additional extra mailing services can be purchased for First-Class Mail, such as Certificates of Mailing, Certified Mail, Registered Mail, Collect on Delivery (COD), and Restricted Delivery. If the item that is being sent First Class is letter size, no additional designation is required on the letter. However, if the item is not letter size, it must be clearly marked “First Class.”
Priority Mail
Priority Mail is used for mail weighing more than 13 ounces that is to be treated as First-Class Mail. It will be delivered anywhere in the United States within 2 to 3 days. The USPS has a set rate for items up to 1 pound, and flat rate envelopes and boxes are available. For an item over 1 pound in ordinary packaging, the rate depends on both the weight of the item and the distance it must be transported. For an additional charge Priority Mail can be combined with Insured Mail, Registered Mail, or Certified Mail or sent COD. Some examples of items that might be sent from the medical office using Priority Mail include copies of medical records.
Standard Mail
The Standard Mail classification is used by newspapers and periodical publishers to send newspapers, journals, magazines, and other periodicals. Periodical mailings must not be sealed, and handwritten messages are not permitted. Standard Mail is also used to send large mailings of newsletters and bulletins. The medical office usually does not obtain the special permit to send items at this rate, but it may receive newspapers, magazines for the waiting room, and medical journals. Standard Mail requires a minimum of 200 pieces or 50 pounds per mailing.
Parcel Post and Other Packages
If time is not a significant factor, packages may be sent using one of the ground mail classifications. Parcel Post is used to send merchandise and other items that weigh up to 70 pounds and measure up to 108 inches in length and girth. Instruction slips, packing slips, sales slips, or invoices can be enclosed in a package sent Parcel Post without additional postage. However, in order to send a letter with a package, the letter must be attached to the outside of the package and paid for at the First-Class rate. The medical office rarely sends items by Parcel Post, although it may receive supplies sent by this method. Media Mail is a special classification for packages containing books, sound recordings, film, manuscripts, and computer media but not advertising. Bound Printed Matter is a classification for packages containing permanently bound catalogs and other volumes containing advertising (e.g., telephone books).
Insurance and Delivery Confirmation Services
The USPS offers a number of extra mailing services. These services must be purchased in addition to the regular postage required to send an item. The medical assistant must understand these extra services, particularly those that are used most frequently in the medical office, such as Certified Mail and Return Receipt.
Certified Mail
Certified Mail is available for First-Class Mail and Priority Mail. It serves as legal evidence that an item was mailed by providing the sender with a mailing receipt. In addition, a record of delivery of the certified item is maintained for 2 years. A green certified mail sticker affixed to the envelope identifies the envelope as Certified Mail. The recipient must sign on delivery of a piece of Certified Mail. This service can also be combined with a Return Receipt for an additional fee (Figure 43-2).

Return Receipt
A Return Receipt provides the sender with proof of delivery of a piece of mail and the signature of the person receiving the mail. This may be done through a postcard signed by the recipient and returned to the sender or by an e-mail with an attachment containing the recipient’s signature. The sender then has a copy of the signature of the person who signed for the piece of mail. This service can be combined with other services. It is often used with Certified Mail to establish proof of mailing, as well as proof of receipt (Figure 43-3).

Signature Confirmation
Signature Confirmation provides a record of the date and time an item was delivered, as well as the name of the person who signed for the item. A delivery record, including the signature of the recipient, is available by fax or mail on request. The medical office usually uses Return Receipt instead of Signature Confirmation for evidence of delivery because the return postcard or e-mail will be sent automatically.
Certificate of Mailing
A Certificate of Mailing provides evidence of the date and time an item was mailed, but there is no legal proof that the item was actually delivered to the recipient. A certificate of mailing might be used when proof of timely mailing is required, such as a tax return. No record is maintained at the post office, so the sender is responsible for keeping the form.
Restricted Delivery
If an item is strictly confidential, Restricted Delivery limits delivery to the addressee, the individual authorized in writing to sign for the addressee, or a parent or guardian. It is not generally necessary to use this service for letters from the medical office, but if a legal case is pending, it might be advisable.
Registered Mail
Registered Mail is available for First-Class and Priority Mail, to insure the contents up to $25,000.00. Registered Mail is used when the contents of the item mailed are valuable. The items are tracked, and the date and time of delivery or delivery attempts can be verified online. The cost depends on the value of the item being sent. The sender receives a receipt that is kept until the recipient receives the item. The recipient must sign a form acknowledging receipt. For an additional fee, the sender can receive a Return Receipt.
Special Handling
Special Handling is used for unusual items that require special treatment, such as a shipment of live bees. Ordinary packages with breakable items can be marked “FRAGILE” and do not require Special Handling provided they are packed with adequate packing material to protect the contents. This service is not usually used by the medical office.
Postal Money Orders
Postal money orders are a safe way to send money through the mail within the United States. They may be purchased in an amount up to $1000.00. The sender is given a customer receipt. If the money order is lost or stolen, the sender presents the receipt to the post office for replacement. Some patients may pay bills with postal money orders.
Other Package Delivery Services
Private carriers compete with the USPS to provide delivery service of letters and packages. Many companies use DHL, FedEx, or United Parcel Service (UPS) for next-day and 2-day delivery service. Larger packages that are not time sensitive can be shipped via UPS or FedEx Ground service. A shipping service company will pick items up from an office and offer continuous item tracking over the company’s website. Each company also provides mailing envelopes and small boxes at no cost to the customer. Once an account has been established, shipping can be arranged and paid for using the Internet.
Private carriers often deliver packages to the medical office. Examples include business supplies and laboratory reagents requiring refrigeration. The medical office may use a private delivery service to send some laboratory specimens to a laboratory for testing if the specimen must go to a special laboratory or cannot wait for the regular laboratory pickup service.
Processing Incoming Mail
Mail is delivered to the medical office in various ways. The postal carrier may deliver the mail directly to the office, or it may be placed in an outside mailbox. Some medical offices use a post office box. In this case the medical assistant must go to the post office to collect the mail each day. In a large clinic the mail may be delivered to a central mailroom, where it is sorted and distributed to each department or individual mailbox.
Once the mail is received by the medical office, it must be processed according to the preferences of individual physicians. One physician may want to see all the incoming mail, whereas another physician may want the medical assistant to screen the mail and remove circulars, patient and insurance payments, and magazines for the waiting room (Procedure 43-1).

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