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Central Distributor SID: Description of Data Elements
This section describes how HCUP data elements are coded, restrictions on their use, their uniform values, and State-specific coding practices.
 
E_CCSn - Clinical Classifications Software (CCS) for ICD-9-CM External Cause of Injury Code
 
Documentation Sections:
General Notes
Uniform Values
State Specific Notes
General Notes
 

Clinical Classifications Software (CCS) consists of over 260 diagnosis categories. All ICD-9-CM diagnosis codes including external cause of injury codes E codes are classified.

Prior to 2003, "E codes" are included in the diagnosis array (DXn) with CCS values in the corresponding array DXCCSn. From January 2003 to September 2015 , any separately reported E codes and any E codes encountered in the diagnosis array are placed in a separate array specific to E codes (ECODEn). The corresponding array E_CCSn contains the CCS category. For data beginning in the fourth quarter of 2015, ICD-10-CM external cause of morbidity codes are stored the data element I10_DXn with the corresponding array of I10_ECauseCCSn to indicate the implementation of the ICD-10-CM/PCS coding system.

In the CCS, E codes are classified into 20 categories (values 2601-2621). E_CCSn is missing (.), if there is no E code (ECODEn = " "). E_CCSn is set to invalid (.A), if the E code (ECODEn) is invalid by the HCUP criteria.

Labels

Labels for CCS categories are provided as an ASCII file in HCUP Tools: Labels and Formats.

Formats

Formats to label CCS categories are documented in HCUP Tools: Labels and Formats. A format is also available to map CCS codes into a few broad classes of conditions based on ICD-9-CM chapters.

 
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Uniform Values
 
VariableDescriptionValueValue Description
E_CCSnClinical Classifications Software (CCS) for ICD-9-CM External Cause of Injury Code2601-2621CCS E-code Class (beginning with 1998 data)
.No diagnosis code
.AInvalid diagnosis code: beginning with 1998 data, EDX02
.CInconsistent: beginning with 1998 data EDX03
 
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State Specific Notes

None

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Internet Citation: HCUP Central Distributor SID Description of Data Elements - All States. Healthcare Cost and Utilization Project (HCUP). August 2008. Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/db/vars/siddistnote.jsp?var=e_ccsn.
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Last modified 8/12/08