Abstract: Managing clinical data documents may involve receiving hierarchically organized clinical document text of a plurality of different clinical documents comprised of text elements, text element qualifiers, and text element values. An analysis of the text elements, the text element qualifiers and the text element values of the received clinical documents may be performed. Clinical concepts in the received documents based on the analysis may be identified. An inventory of identified concepts may be generated. Clinical concepts may be combined to provide concept combinations, and a data structure model using the inventory and the concept combinations may be generated.