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J Ambul Care Manage. 2006 Oct-Dec;29(4):283-90.

Using medical billing data to evaluate chronically ill children over time.

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Center for Children with Special Needs, Children's Hospital and Regional Medical Center, Department of Pediatrics, University of Washington, Seattle, 98101, USA.


This study evaluates stability of chronic condition identification in children older than 4 years in a health plan billing data using Clinical Risk Groups. A total of 31,055 children were continuously enrolled for 4 years; 7.5% (2,334) identified with a chronic condition status in year 1, 2002, and another 15.4% (4,784) during subsequent years; 63.6% (19,759) were identified as "healthy" throughout. The most stable were those identified with a catastrophic health condition. The least stable were those with minor and moderate/dominant major chronic conditions. Overall, 73.1% (1,706) of the children with chronic conditions in year 1 improved in status, and 5.7% (133) progressed to more complex conditions.

[Indexed for MEDLINE]

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