Birth Defects Cases by Leading Diagnostic Groups and by Birth Year Interval
Hillsdale County, Michigan Resident Children 2003 through 2019
Three Year Moving Total Prevalence

Diagnostic Code GroupBirth Year Interval
2003
to
2005		2004
to
2006		2005
to
2007		2006
to
2008		2007
to
2009		2008
to
2010		2009
to
2011		2010
to
2012		2011
to
2013		2012
to
2014		2013
to
2015		2014
to
2016		2015
to
2017		2016
to
2018		2017
to
2019
Heart & Circulatory System 22  20  22  27  27  24  17  22  23  26  20  29  32  34  24  
Congenital Anomalies 17  16  19  20  20  20  16  17  18  22  20  27  30  32  24  
Other Conditions 8  6  6  10  9  5  1  5  5  4  -  3  4  5  2  
Musculoskeletal System 15  14  16  25  23  20  9  17  17  22  15  18  18  23  22  
Congenital Anomalies 15  14  16  25  23  20  9  17  17  22  15  18  18  23  22  
Other Conditions -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  
Genital & Urinary Systems 20  18  13  9  8  6  4  12  17  18  13  12  22  27  24  
Congenital Anomalies 20  18  13  9  8  6  4  11  16  17  13  11  21  25  23  
Other Conditions 1  1  1  -  -  -  -  1  2  2  1  1  1  2  1  
Gastrointestinal System 11  7  7  6  5  5  7  11  12  13  9  13  12  20  19  
Congenital Anomalies 6  4  5  5  5  5  7  10  11  11  8  11  9  14  11  
Other Conditions 5  3  2  2  1  1  -  1  2  4  3  3  3  6  8  
Eye 3  2  4  7  8  7  6  8  10  14  10  11  7  8  8  
Congenital Anomalies 2  1  3  4  3  2  2  4  5  5  3  4  3  3  1  
Other Conditions 1  1  2  4  6  5  4  4  5  9  7  7  4  5  8  
Central Nervous System 3  3  7  13  12  8  1  5  6  12  9  11  10  14  16  
Congenital Anomalies 1  1  4  7  6  3  -  3  4  7  5  7  9  11  9  
Other Conditions 2  2  4  7  7  5  1  3  4  9  7  8  4  6  8  
Maternal Exposures -  -  1  1  1  1  2  6  10  11  8  10  11  13  8  
Integument Anomalies 7  7  7  1  2  2  2  2  1  8  9  9  3  2  2  
Respiratory
System Anomalies 		6  7  6  2  1  4  5  9  7  8  4  4  3  8  11  
Other
Reportable Conditions 		12  13  15  22  18  22  17  27  37  58  58  64  48  62  55  
One or More
Reportable Conditions 		71  70  72  83  78  67  47  63  85  122  118  143  128  155  140  
                 

Notes:
Frequencies include all children reported with a birth defect who were born in Michigan and whose mother was a resident of Hillsdale County, Michigan at the time of birth. This enables the calculation of birth defects prevalence rates. Prior to October 2015, diagnoses were coded using the 9th revision to the International Classification of Diseases - ICD–9–CM.  (See Birth Defect Groups and ICD–9–CM Diagnosis Codes for the codes used to categorize birth defects.) After October 2015, the Birth Defect registry coded diagnoses using ICD–10–CM. (See Birth Defect Groups and ICD–10–CM Diagnosis Codes for the codes used to categorize birth defects.) Diagnostic Code Groupings used in analysis of birth defects are defined by the Centers for Disease Control.
Conditions are reportable if identified within the first two years of a child's life. The frequencies at one year and at two years serve to indicate the time from the birth of the child to the diagnosis of the condition. Birth defect statistics sometimes reflect trends related to data reporting or new testing. See Data Quality Considerations for further details.
Source: Michigan Birth Defects Registry, Division for Vital Records & Health Statistics, Michigan Department of Health & Human Services
Reports Processed through May 28, 2022

Last Updated on May 1, 2022