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California Office of Statewide Health Planning & Development

Healthcare Information Division - ICD-9-CM Code Frequencies

Diagnosis Code

The frequency of each Diagnosis Code is displayed as Total, Principal, and as each of the 24 Other Diagnoses Codes.

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Condition Present Upon Admission

The frequency of conditions (diagnoses) that were and were not "Present Upon Admission", displayed by each Diagnosis Code (Principal and Other).

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External Injury Code

The frequency of each E-Code is displayed as Total, Principal, and as each of the four Other E-Codes.

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Procedure Code

The frequency of each Procedure Code is displayed as Total, Principal, and as each of the 20 Other Procedure Codes.

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* International Classification of Diseases, 9th Revision, Clinical Modification.


Attention Data Users: Please exercise caution when interpreting OSHPD data. The use of improper assumptions and analytical methods may result in erroneous or misleading conclusions. Conclusions drawn from OSHPD data are the sole responsibility of the user. Users should be aware that financial and utilization data products are based on a dynamic database that is constantly being updated. As a result, the same data item for a facility may change over time or be different between products.

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Page last revised: July 30, 2008 8:02 AM