Importance of ICD-10 coding directive change for acute gastroenteritis (unspecified) for rotavirus vaccine impact studies: illustration from a population-based cohort study from Ontario, Canada

BMC Research Notes

Laura C. Rosella²  Shelley L. Deeks¹  Sarah E. Wilson¹ 

[1] Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada;Institute for Clinical Evaluative Sciences, Toronto, ON, Canada

关键词: Vaccine impact;    Rotavirus vaccine;    International Classification of Diseases (ICD);    Epidemiology;    Administrative data;    Acute gastroenteritis;   

Others  :  1230152
DOI  :  10.1186/s13104-015-1412-5

 received in 2014-11-03, accepted in 2015-09-07,  发布年份 2015

【 摘 要 】

Background

In Ontario, Canada, we conducted an evaluation of rotavirus (RV) vaccine on hospitalizations and Emergency Department (ED) visitations for acute gastroenteritis (AGE). In our original analysis, any one of the International Classification of Disease, Version 10 (ICD-10) codes was used for outcome ascertainment: RV-specific- (A08.0), viral- (A08.3, A08. 4, A08.5), and unspecified infectious- gastroenteritis (A09). Annual age-specific rates per 10,000 population were calculated.

Findings

The average monthly rate of AGE hospitalization for children under age two increased from 0.82 per 10,000 from January 2003 to March 2009, to 2.35 over the period of April 2009 to March 31, 2013. Similar trends were found for ED consultations and in other age groups. A rise in events corresponding to the A09 code was found when the outcome definition was disaggregated by ICD-10 code. Documentation obtained from the World Health Organization confirmed that a change in directive for the classification of unspecified gastroenteritis occurred with the release of ICD-10 in April 2009. AGE events previously classified under the code K52.9, are now classified under code A09.9.

Conclusions

Based on change in the classification of unspecified gastroenteritis we modified our outcome definition to also include unspecified non-infectious-gastroenteritis (K52.9). We recommend other investigators consider using both A09.9 and K52.9 ICD-10 codes for outcome ascertainment in future rotavirus vaccine impact studies to ensure that all unspecified cases of AGE are captured, especially if the study period spans 2009.

【 授权许可】

   
2015 Wilson et al.

【 图 表 】

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【 参考文献 】

• [1]Rotavirus vaccines. WHO position paper. Wkly Epidemiol Rec. 2013;88(5):49–64.
• [2]National Advisory Committee on Immunization (NACI), An Advisory Committee Statement (ACS): Statement on the recommended use of a pentavalent human-bovine reassortant rotavirus vaccine Can Comm Dis Rep 2008, 34(1):1-33.
• [3]National Advisory Committee on Immunization (NACI), An Advisory Committee Statement (ACS) : Updated statement on the use of rotavirus vaccines Can Comm Dis Rep 2010, 36(4):1-37.
• [4]Public Health Agency of Canada (PHAC). Publicly funded immunization programs in Canada—routine schedule for infants and children including special programs and catch-up programs.. http://www.phac-aspc.gc.ca/im/ptimprog-progimpt/table-1-eng.php webcite
• [5]Field EJ, Vally H, Grimwood K, Lambert SB: Pentavalent rotavirus vaccine and prevention of gastroenteritis hospitalizations in Australia. Pediatrics 2010, 126(3):e506-e512.
• [6]Cortes JE, Curns AT, Tate JE, Cortese MM, Patel MM, Fangjun Z, et al.: Rotavirus vaccine and health care utilization for diarrhea in U.S. children. N Engl J Med 2011, 365(12):1108-1117.
• [7]Buttery JP, Danchin MH, Lee KJ, Carlin JB, McIntyre PB, Elliott EJ, et al.: Intussusception following rotavirus vaccine administration: post-marketing surveillance in the national immunization program in Australia. Vaccine 2011, 29(16):3061-3066.
• [8]Quintanar-Solares M, Yen C, Richardson V, Esparza-Aguilar M, Parashar UD, Patel MM: Impact of rotavirus vaccination on diarrhea-related hospitalizations among children <5 years of age in Mexico. Pediatr Infect Dis J. 2011, 30(1 Suppl):S11-S15.
• [9]Molto Y, Cortes JE, De Oliveira LH, Mike A, Solis I, Suman O, et al.: Reduction of diarrhea-associated hospitalizations among children aged <5 years in Panama following the introduction of rotavirus vaccine. Pediatr Infect Dis J. 2011, 30(1 Suppl):S16-S20.
• [10]Desai R, Curns AT, Steiner CA, Tate JE, Patel MM, Parashar UD: All-cause gastroenteritis and rotavirus-coded hospitalizations among US children, 2000–2009. Clin Infect Dis 2012, 55(4):e28-e34.
• [11]Lambert SB, Faux CE, Hall L, Birrell FA, Peterson KV, Selvey CE, et al.: Early evidence for direct and indirect effects of the infant rotavirus vaccine program in Queensland. Med J Aust 2009, 191(3):157-160.
• [12]Bettinger JA, Wills K, Le Saux N, Scheifele DW, Halperin SA, Vaudry W: Members of the Canadian Immunization Monitoring Program, ACTive (IMPACT): Heterogeneity of rotavirus testing and admitting practices for gastroenteritis among 12 tertiary care pediatric hospitals: implications for surveillance. Can J Infect Dis Med Microbiol 2011, 22(1):15-18.
• [13]Hsu VP, Staat MA, Roberts N, Theiman C, Bernstein DI, Bresee J, et al.: Use of active surveillance to validate international classification of diseases code estimates of rotavirus hospitalizations in children. Pediatrics 2005, 115(1):78-82.
• [14]Patel MM, Tate JE, Selvarangan R, Daskalaki I, Jackson MA, Curns AT, et al.: Routine laboratory testing data for surveillance of rotavirus hospitalizations to evaluate the impact of vaccination. Pediatr Infect Dis J. 2007, 26(10):914-919.
• [15]Jayasinghe S, Macartney K: Estimating rotavirus gastroenteritis hospitalisations by using hospital episode statistics before and after the introduction of rotavirus vaccine in Australia. Vaccine 2013, 31(6):967-972.
• [16]Lopman BA, Curns AT, Yen C, Parashar UD: Infant rotavirus vaccination may provide indirect protection to older children and adults in the United States. J Infect Dis 2011, 204(7):980-986.
• [17]Walker RL, Hennessy DA, Johansen H, Sambell C, Lix L, Quan H: Implementation of ICD-10 in Canada: how has it impacted coded hospital discharge data? BMC Health Serv Res. 2012, 10(12):149. BioMed Central Full Text
• [18]Tate JE, Mutuc JD, Panozzo CA, Payne DC, Cortese MM, Cortes JE, et al.: Sustained decline in rotavirus detections in the United States following the introduction of rotavirus vaccine in 2006. Pediatr Infect Dis J 2011, 30(1 Suppl):S30-S34.
• [19]Tate JE, Haynes A, Payne DC, Cortese MM, Lopman BA, Patel MM, Parashar UD: Trends in national rotavirus activity before and after introduction of rotavirus vaccine into the national immunization program in the United States, 2000 to 2012. Pediatr Infect Dis J. 2013, 32(7):741-744.
• [20]Canadian Institute for Health Information. Coding standards for version 2009 ICD-10-CA and CCI: Ottawa. 2009.
• [21]World Health Organization. ICD-10 online versions: ICD-10 2010 (Current Version).. http://apps.who.int/classifications/icd10/browse/2010/en webcite
• [22]Centers for Disease Control and Prevention. International classification of diseases, ninth revision, clinical modification (ICD-9-CM).. http://www.cdc.gov/nchs/icd/icd9cm.htm webcite
• [23]Mehal JM, Esposito DH, Holman RC, Tate JE, Callinan LS, Parashar UD: Risk factors for diarrhea-associated infant mortality in the United States, 2005–2007. Pediatr Infect Dis J. 2012, 31(7):717-721.
• [24]Leino T, Ollgren J, Salo H, Tiihonen P, Kilpi T: First year experience of rotavirus immunisation programme in Finland. Vaccine 2012, 31(1):176-182.
• [25]Gurgel RQ, Ilozue C, Correia JB, Centenari C, Oliveira SM, Cuevas LE: Impact of rotavirus vaccination on diarrhoea mortality and hospital admissions in Brazil. Trop Med Int Health 2011, 16(9):1180-1184.
• [26]Canadian Institute for Health Information. Volume 1—International Statistical Classification of Diseases and Related Health Problems, Tenth Revision, Canada (ICD-10-CA)—Tabular List.. https://www.cihi.ca/en/icd_10_ca_vol1_2009_en.pdf webcite
• [27]Canadian Institute for Health Information. Coding Standards for Version 2009 ICD-10-CA and CCI. 2009.. https://secure.cihi.ca/free_products/canadian_coding_standards_2009_rev_e.pdf webcite