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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.
 
CHRONn - ICD-9-CM Chronic Condition Indicators
 
Documentation Sections:
General Notes
Uniform Values
State Specific Notes
General Notes
 

The Chronic Condition Indicator provides an easy way for users to categorize ICD-9-CM diagnosis codes into one of two categories: chronic or not chronic. A chronic condition is defined as a condition that lasts 12 months or longer and meets one or both of the following tests: (a) it places limitations on self-care, independent living, and social interactions; (b) it results in the need for ongoing intervention with medical products, services, and special equipment. The identification of chronic conditions is based on ICD-9-CM diagnosis codes. External cause of injury codes (E codes) are not classified by the Chronic Condition Indicators because all injuries are assumed to be acute.

More information on the Chronic Condition Indicators is available under Tools & Software on the HCUP-US Web site.

For data beginning in the fourth quarter of 2015, the chronic condition indicator is stored in the data element I10_CHRONn to indicate the implementation of the ICD-10-CM/PCS coding system.

 
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Uniform Values
 
VariableDescriptionValueValue Description
CHRONnICD-9-CM Chronic Condition Indicators0Non-chronic condition
1Chronic condition
.Missing
.AInvalid
.CInconsistent
 
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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=chronn.
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Last modified 8/12/08