Diagnostic Map Dashboards Overview

The data content in the map dashboards is summarized from the Maryland Medicaid Management Information System (MMIS). The diagnostic categories and groups are the codes from the International Statistical Classification of Diseases and Related Health Problems (ICD) and the Maryland Department of Health and Mental Hygiene (DHMH). The statistics are taken from MMIS fee-for-service and Health Choice program data based on data provided to the states by the health care provider types specified in the title of each report.

For most of the diagnoses and diagnostic groups the persons are chosen by the primary diagnosis ICD9 code from the Medicaid service records. Additional diagnosis codes, such as secondary or tertiary codes are not used for this application. That should mean that the diagnosis or diagnostic group was the main focus of the visit to the Medicaid provider. The exception in the current set of map dashboards is the diagnostic group for dental visits. In this case the diagnostic codes were not used. A visit was determined as any service received from a Medicaid dental service provider.

These dashboards are county based representations of the percentages of Medicaid recipients with a diagnosis or diagnostic group as stated in the dashboard titles. The percentages are a per capita per year statistic for Maryland counties and Baltimore City, with overall percentages for the state of Maryland and county based regions. The state and region percentages serve as baseline measurements for comparison against individual counties.

Currently, there are two map dashboards, one for FY07 to FY11 data and another for FY12 to FY15 data. You can toggle between these two dashboards by clicking on the FY12-FY15 link located at the top of the FY07-FY11 page, or by clicking on the FY07-FY11 link from the FY12-FY15 page. The map dashboard for the FY12-FY15 data has a shaded background.

The county percentages are computed as the number of recipients with the named diagnosis or diagnostic group in a county (numerator) divided by the total Medicaid recipients in that county (denominator), multiplied by 100. This method of obtaining a per capita (or percentage) statistic minimizes the effect on the statistic by the size of the population of a county or city.

The persons in the county in each diagnosis or diagnostic group are further broken down into age groups or race, and they are displayed in a pie chart as percentages adding up to 100. These can be seen in the “County Pie Chart” when a county is selected. The number in the pie chart slice in parens below the above number is the percentage of total county population.

The Map Dashboards are highly interactive. Experienced users may be able to see the patterns of interactivity simply by moving and clicking the mouse around the dashboard. Information about using the dashboard may be obtained by clicking on the “Help” button near the top right of the dashboard.

The data used for the computations to obtain the statistics in the dashboard reports may be found under the “Data” button near the top left of each dashboard. Click on the button and click on the arrows next to the titles until you see a list of years (i.e. FY2007, FY2008, etc.). Click on a year to change the data in the dashboard report to reflect the statistics for that year. Click on the dog-eared symbol to the left of a year to bring up a new window (drill-down) with the data tables used for the dashboard computations, as well as additional data for comparison, such as age groups at the state level.

Medicaid recipients listed as living out of state are not included in the state, county, and city statistics on the map dashboards, but they are included in total state counts in the data tables. The out of state numbers may be seen in the data drill-downs under the “Data” button. They are not included in the map statistics because they are not living in the state of Maryland. The out of state recipients are shown in the data tables so there is a comprehensive total number of medicaid recipients for reference. The total population for the counties is the same in both places. Because of the different state totals for the maps and data tables, there may be a small difference in the state percentages in these two places. The county percentages should not be affected.

Per the DHMH Medicaid Data Use Agreement, data suppression is used (for FY12-FY15 data only) within the age and race group levels when the person count is less than or equal to 10. The count reduction caused by the data suppression will not be statistically significant at the county and state level.