i
a reference standard
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Sep 09 2015
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Source: Pharmacoepidemiol Drug Saf. 25(3):263-268.
[PDF-196.86 KB]
Details:
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Alternative Title:Pharmacoepidemiol Drug Saf
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Personal Author:
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Description:Purpose
To estimate the accuracy of two algorithms to identify cholecystectomy procedures using International Classification of Diseases, 9th Edition, Clinical Modification (ICD-9-CM) and Current Procedural Terminology (CPT-4) codes in administrative data.
Methods
Private insurer medical claims for 30,853 patients 18–64 years with an inpatient hospitalization between 2006 and 2010, as indicated by providers/facilities place of service in addition to room and board charges, were cross-classified according to the presence of codes for cholecystectomy. The accuracy of ICD-9-CM- and CPT-4-based algorithms was estimated using a Bayesian latent class model.
Results
The sensitivity and specificity were 0.92 [probability interval (PI): 0.92, 0.92] and 0.99 (PI: 0.97, 0.99) for ICD-9-CM-, and 0.93 (PI: 0.92, 0.93) and 0.99 (PI: 0.97, 0.99) for CPT-4-based algorithms, respectively. The parallel-joint scheme, where positivity of either algorithm was considered a positive outcome, yielded a sensitivity and specificity of 0.99 (PI: 0.99, 0.99) and 0.97 (PI: 0.95, 0.99), respectively.
Conclusions
Both ICD-9-CM- and CPT-4-based algorithms had high sensitivity to identify cholecystectomy procedures in administrative data when used individually and especially in a parallel-joint approach.
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Source:
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Pubmed ID:26349484
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Pubmed Central ID:PMC4775358
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Document Type:
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Funding:
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Volume:25
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Issue:3
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