A major task involved in the management, analysis, and integration of qualitative data is the development of a coding schema to facilitate the analytic process. Described in this paper is the evolution of a coding schema that was used in the analysis of qualitative data generated from online forums of middle-aged women with chronic conditions who participated in a computer support intervention in the rural west. The coding schema evolved over three phases of the research project and included coding tree nodes based on study-driven categories and nodes that arose from the data and changes in conceptual thinking. This paper provides researchers with information about a potential approach that can be used when coding large amounts of qualitative data from a multi-phased study. (Contains 1 figure and 3 tables.)