Development and Testing of Compatible Diagnosis Code Lists for the Functional Comorbidity Index: International Classification of Diseases, Ninth Revision, Clinical Modification and International Classification of Diseases, 10th Revision, Clinical Mod

Details

• Personal Author:
  Rundell SD ; Sears JM
• Description:
  Background: The Functional Comorbidity Index (FCI) was developed for community-based adult populations, with function as the outcome. The original FCI was a survey tool, but several International Classification of Diseases (ICD) code lists-for calculating the FCI using administrative data-have been published. However, compatible International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) and ICD-10-CM versions have not been available. Objective: We developed ICD-9-CM and ICD-10-CM diagnosis code lists to optimize FCI concordance across ICD lexicons. Research design: We assessed concordance and frequency distributions across ICD lexicons for the FCI and individual comorbidities. We used length of stay and discharge disposition to assess continuity of FCI criterion validity across lexicons. Subjects: State Inpatient Databases from Arizona, Colorado, Michigan, New Jersey, New York, Utah, and Washington State (calendar year 2015) were obtained from the Healthcare Cost and Utilization Project. State Inpatient Databases contained ICD-9-CM diagnoses for the first 3 calendar quarters of 2015 and ICD-10-CM diagnoses for the fourth quarter of 2015. Inpatients under 18 years old were excluded. Measures: Length of stay and discharge disposition outcomes were assessed in separate regression models. Covariates included age, sex, state, ICD lexicon, and FCI/lexicon interaction. Results: The FCI demonstrated stability across lexicons, despite small discrepancies in prevalence for individual comorbidities. Under ICD-9-CM, each additional comorbidity was associated with an 8.9% increase in mean length of stay and an 18.5% decrease in the odds of a routine discharge, compared with an 8.4% increase and 17.4% decrease, respectively, under ICD-10-CM. Conclusion: This study provides compatible ICD-9-CM and ICD-10-CM diagnosis code lists for the FCI. [Description provided by NIOSH]
• Subjects:
  Health Care Facilities Workforce And Services Mortality Occupational Health Safety
• Keywords:
  Author Keywords: Functional Comorbidity Index Comorbidity Electronic Health Records Health Care Health Services Health Status International Classification Of Diseases Mortality Rates Risk Adjustment
• ISSN:
  0025-7079
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 10 ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  58
• Issue:
  12
• NIOSHTIC Number:
  nn:20061976
• Citation:
  Med Care 2020 Dec; 58(12):1044-1050
• Contact Point Address:
  Jeanne M. Sears, PhD, MS, RN, Department of Health Services, University of Washington, Box 357660, Seattle, WA 98195
• Email:
  jeannes@uw.edu
• Federal Fiscal Year:
  2021
• Performing Organization:
  University of Washington, Seattle
• Peer Reviewed:
  True
• Start Date:
  20180901
• Source Full Name:
  Medical Care
• End Date:
  20200831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:55be74f0e5aa4a1aab9c7354ff29ec5045f30344dc5624f6c01b2cedefd9d37570ec72200778dc823609ff4dab90e0edd43e0759275a58005d3808ae14fbe76c
• Download URL:
  https://stacks.cdc.gov/view/cdc/225304/cdc_225304_DS1.pdf
• File Type:
  [PDF - 201.96 KB ]