Central Distributor SID: Description of Data Elements

DCCHPRn - Clinical Classifications Software: diagnosis classification

Documentation Sections:

General Notes

Uniform Values

State Specific Notes

General Notes

Clinical Classifications Software (CCS), formerly known as Clinical Classifications for Health Policy Research (CCHPR), consists of 260 diagnosis categories. This system is based on ICD-9-CM codes. All diagnosis codes are classified. All E-codes (External Causes of Injury and Poisoning) are combined into the last category, 260. DCCHPRn is coded as follows: DCCHPRn ranges from 1 to 260 if the diagnosis code (DXn) is valid by the HCUP criteria, which allows a six-month window (three months before and three 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. DCCHPRn is missing (.), if there is no diagnosis code (DXn = " "). DCCHPRn is set to invalid (.A), if the diagnosis code (DXn) is invalid (DXVn = 1). DCCHPRn is retained (values 1-260) when a valid diagnosis is flagged as inconsistent with age or sex (DXVn = .C). For best results, use DCCHPRn only when the diagnosis is valid and consistent (DXVn = 0). Beginning in the 1998 data, this data element is called DXCCSn. Labels Labels for CCS, formerly known as CCHPR, categories are provided as an ASCII file in HCUP Tools: Labels and Formats. Formats Formats to label CCS, formerly known as CCHPR, categories are documented in HCUP Tools: Labels and Formats. Both sixteen-and forty-character labels are available. A format is also available to map CCS codes into a few broad classes of conditions based on ICD-9-CM chapters. These formats are also documented in HCUP Tools: Labels and Formats.

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Uniform Values

Variable Description Value Value Description DCCHPRn Clinical Classifications Software: diagnosis classification 1-260 CCS Diagnosis Codes . No diagnosis code .A Invalid diagnosis code

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State Specific Notes

None

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