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Central Distributor SID: Description of Data Elements

 
I10_DXCCSn - Clinical Classifications Software (CCS): ICD-10-CM diagnosis classification
 
Documentation Sections:
General Notes
Uniform Values
State Specific Notes
General Notes
 

Clinical Classifications Software (CCS) consists of over 260 diagnosis categories. All ICD-10-CM diagnosis codes are classified.

I10_DXCCSn is coded as follows:

  • 1 to 259 if the diagnosis code (I10_DXn) is valid by the HCUP criteria and not a code specific to injuries and adverse events. The HCUP criteria for diagnosis validation allows a year window (six months before and six months after) around the official ICD-9-CM coding changes (usually October 1), for anticipation of or lags in response to official ICD-9-CM coding changes.
  • 2601-2621 if the diagnosis (I_10DXn) is a valid code indicating an injury or adverse event by the HCUP criteria.
  • DXCCSn is missing (.), if there is no diagnosis code (I10_DXn = " ").
  • DXCCSn is set to invalid (.A), if the diagnosis code (I10_DXn) is invalid by the HCUP criteria (EDX02).
  • DXCCSn is set to inconsistent (.C), if the diagnosis code (I10_DXn) is inconsistent with age (EAGE04 and EAGE05) or sex of the patient (EDX03).

For data prior to the fourth quarter of 2015, the CCS is stored in the data element DXCCSn to indicate the use of the ICD-9-CM coding system. In HCUP databases before 1998, this data element is called DCCHPRn.

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-10-CM chapters.

 
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Uniform Values
 
VariableDescriptionValueValue Description
I10_DXCCSnClinical Classifications Software (CCS): ICD-10-CM diagnosis classification1-259CCS for diagnosis codes
2601-2621CCS for injury and adverse events
.No diagnosis code
.AInvalid diagnosis code: EDX02
.CInconsistent: EAGE04, EAGE05, 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). October 2024. Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/db/vars/siddistnote.jsp?var=i10_dxccsn.
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Last modified 10/16/24