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Health Statistics

Tennessee Crash Outcome Data Evaluation System

Tennessee Codes 2000
Total Crash Related Hospital Charges
$382,221,057

(based on Linked Tennessee Crash Occupants and Inpatients including Admitted Emergency Department Patients)

Click on the Region to view Hospital Charges by Counties in that Region
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Fayette, Lauderdale, Shelby, Tipton Benton, Carroll, Chester, Crockett, Decatur, Dyer, Gibson, Hardeman, Hardin, Haywood, Henderson, Henry, Lake, Madison, Mcnairy, Obion, Weakley Cheatham, Davidson, Dickson, Houston, Humphreys, Montgomery, Robertson, Rutherford, Stewart, Sumner, Trousdale, Williamson, Wilson Bedford, Coffee, Franklin, Giles, Hickman, Lawrence, Lewis, Lincoln, Marshall, Maury, Moore, Perry, Wayne Cannon, Clay, Cumberland, Dekalb, Fentress, Jackson, Macon, Overton, Pickett, Putnam, Smith, Van Buren, Warren, White Bledsoe, Bradley, Grundy, Hamilton, Marion, Mcminn, Meigs, Polk, Rhea, Sequatchie Anderson, Blount, Campbell, Claiborne, Cocke, Grainger, Hamblen, Jefferson, Knox, Loudon, Monroe, Morgan, Roane, Scott, Sevier, Union Carter, Greene, Hancock, Hawkins, Johnson, Sullivan, Unicoi, Washington

Source: Tennessee Department of Health, Division of Health Statistics

The Crash Outcome Data Evaluation System (CODES) utilizes a complex probabilistic linking method to link crash-involved persons with persons in disparate databases such as the hospital discharge data
in order to help determine the medical charges and degree of injury associated with that victim.
Prior to 2000 data, only drivers with known driver licenses could be linked. Advancements in the
linkage method and stronger data have enabled Tennessee to start linking all occupants, even with
partial personal identifiers.

For the 2000 Tennessee CODES Project, patients that had been admitted as an inpatient with or without emergency room care were used to link with the crash victims in Tennessee. Using the Traumatic Brain Injury Registry which includes the injury state in many cases, it is estimated that 15-30% of all crash victims in Tennessee hospitals were the result of crashes that occurred outside the Tennessee border. Tennessee is the only state to be bordered by eight states. Several of our Trauma Centers are on our borders as well. The 2000 Tennessee CODES project found 94% of estimated matches. Because Tennessee is only matching crashes that occurred in our state, many hospital records will not match up to a Tennessee crash record.

A key element to understanding the medical charges associated with a crash victim is the method of
determining charges. Because of hospital billing practices, patient records are often split into  multiple records. Also, a patient transferred to another hospital or rehab center will have separate  records for each hospital. In order to get the truest picture of the total charges, hospital discharge  records are condensed down to one record per patient per event. This means that 1) multiple billing  records in the same hospital for the same stay will be condensed into a single record; and 2) records of patients transferring from one hospital to another or to a long term rehabilitation center from the same event will be condensed into a single record for that patient. A patient's ecodes, primary diagnosis, and type/area of injuries, as well as the gap between discharge dates and admit dates are taken into account.
 

The map is divided into regions as defined by the Tennessee Emergency Medical Services. These region borders are based on ambulance runs between counties. Though the Emergency Medical Services data is not yet available, their regions provide the best location comparison information to date