Reconciliation of international administrative coding systems for comparison of colorectal surgery outcome

Munasinghe, A, Chang, D, Mamidanna, R, Middleton, S, Joy, M, Penninckx, F, Darzi, A, Livingston, E and Faiz, O (2014) Reconciliation of international administrative coding systems for comparison of colorectal surgery outcome Colorectal Disease, 16 (7). pp. 555-561.

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Abstract

Aim Significant variation in colorectal surgery outcomes exists between different countries. Better understanding of the sources of variable outcomes using administrative data requires alignment of differing clinical coding systems. We aimed to map similar diagnoses and procedures across administrative coding systems used in different countries. Method Administrative data were collected in a central database as part of the Global Comparators (GC) Project. In order to unify these data, a systematic translation of diagnostic and procedural codes was undertaken. Codes for colorectal diagnoses, resections, operative complications and reoperative interventions were mapped across the respective national healthcare administrative coding systems. Discharge data from January 2006 to June 2011 for patients who had undergone colorectal surgical resections were analysed to generate risk-adjusted models for mortality, length of stay, readmissions and reoperations. Results In all, 52 544 case records were collated from 31 institutions in five countries. Mapping of all the coding systems was achieved so that diagnosis and procedures from the participant countries could be compared. Using the aligned coding systems to develop risk-adjusted models, the 30-day mortality rate for colorectal surgery was 3.95% (95% CI 0.86–7.54), the 30-day readmission rate was 11.05% (5.67–17.61), the 28-day reoperation rate was 6.13% (3.68–9.66) and the mean length of stay was 14 (7.65–46.76) days. Conclusion The linkage of international hospital administrative data that we developed enabled comparison of documented surgical outcomes between countries. This methodology may facilitate international benchmarking. What does this paper add to the literature? This paper provides the first translation of international coding systems for colorectal diagnoses, operations, complications and reinterventions, and will serve as a basis for future comparisons between the results reported in different countries.

Item Type:	Article
Subjects :	Medical Science
Divisions :	Surrey research (other units)
Authors :	Name Email ORCID Munasinghe, A Chang, D Mamidanna, R Middleton, S Joy, M m.joy@surrey.ac.uk Penninckx, F Darzi, A Livingston, E Faiz, O
Date :	July 2014
DOI :	10.1111/codi.12624
Copyright Disclaimer :	© 2014 The Association of Coloproctology of Great Britain and Ireland
Uncontrolled Keywords :	International coding systems, Surgical outcome, International comparison, Colorectal surgery
Depositing User :	Symplectic Elements
Date Deposited :	17 May 2017 10:48
Last Modified :	24 Jan 2020 20:04
URI:	http://epubs.surrey.ac.uk/id/eprint/829274

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