The CDA TM book
Clinical documentation is used throughout healthcare to describe care provided to a patient, communicate essential information between healthcare providers and maintain medical records. The CDA Book describes the HL7 Clinical Document Architecture R
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CDATM provides eight different data types to record what is commonly thought of as demographic data. These are address parts and addresses; name parts; organization, personal and other names; identifiers, and telecommunications endpoints.
7.1 ADXP Address Part Postal addresses can be parsed into a collection of different parts. Each of these parts identifies a geographic or political boundary at some level of detail. The CDA standard supports the identification of more than 25 different parts of a postal address, including parts such as a house or building number, direction indicator on a street, post box number, and apartment number. These more detailed address parts are infrequently used inside CDA documents. CDA implementations should be prepared to specify how addresses must be represented in documents that are exchanged, or to handle them in all of their complexity. Without looking at the CDA standard, how many different parts of a postal address can you come up with?
partType Each address part is assigned a code called the address part type. This code is stored in the partType attribute in the CDA schema. Implementations usually do not typically use the partType attribute. The value of this attribute is fixed for each of the different elements used to markup parts of an address. The CDA schema automatically supplies the appropriate value for this attribute when these elements appear. Health information systems traditionally divide an address up into one or more street address lines; a city; state, province, territory or similar division; postal code and may also support country and county, parish or similar division. In the United States, 49 states have counties and the state of Louisiana uses the term parish. The term parish is also used in other countries such as United Kingdom and Ireland.
K.W. Boone, The CDATM Book, DOI: 10.1007/978-0-85729-336-7_7, © Springer-Verlag London Limited 2011
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7 Demographic Data
The is intended to record parts of an address like post office box numbers, rural routes and general delivery addresses. These are used for the delivery of correspondence, but do not correspond to the physical location of the recipient. It is rarely used for this purpose as most CDA implementations use the element for this purpose. This is because most information systems do not distinguish between a delivery and a street addresses.
The element is intended to record a physical street address. This address may be used to deliver correspondence or to physically locate the destination. As previously noted, the CDA standard allows this element to be repeated as many times as needed. While most healthcare information systems support more than one street address line, few support more than three, and some healthcare standards such as X12N support only two lines for an address.
The element records the city, town or other municipality associated with the address. In the new release of HL7 data types expected to be used with CDA Release 3.0, the city can be bound to a list of legal val
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