This AP Observation template has two types of specialized child templates:

·        Child templates for generic (i.e.; neither organ-specific nor problem-specific) AP observation templates. These generic templates MAY be used for the description of any type of lesion located in any anatomic site. (e.g. ; “lesion site”, “histologic type”). These generic AP Observation templates are identified in the sub-branch 1.3.6.1.4.1.19376.1.8.1.4.11.

·        Child templates for specific (i.e.; organ-specific and/or problem-specific) AP observation templates. These specific templates SHALL be used for the description of lesions in a specific APSR document template (e.g.; In a Breast APSR, “site of breast infiltrating tumor”, “histologic type of breast infiltrating tumor” ). These specific AP Observation templates are identified in the sub-branch 1.3.6.1.4.1.19376.1.8.1.4.12.

Each specialized child template has exactly the same structure as the parent AP Observation template, and brings only a number of vocabulary constraints :

·        The code for the specific observation, defined as a value set bound to the observation/code element, containing a single triplet (code, codeSystem, displayName) representing this specific observation.

·        The cardinalities and default type for the observation/value element carrying the results of this observation.

·        The domain of values for this observation in case these values are coded. This domain of coded values is defined as a value set bound to the observation/value element, containing as many triplets (code, codeSystem, displayName) as there are admissible result values for this observation.

An AP observation has a status and an effective time, may describe various participants (persons, devices, organizations), may have a number of additional properties (method, interpretation, text), and may contain embedded images, comments, and sub-observations, which are also AP observations.