.. docs/source/tasks/elixhauserci.rst
.. Copyright (C) 2012, University of Cambridge, Department of Psychiatry.
Created by Rudolf Cardinal (rnc1001@cam.ac.uk).
.
This file is part of CamCOPS.
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CamCOPS is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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(at your option) any later version.
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CamCOPS is distributed in the hope that it will be useful,
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You should have received a copy of the GNU General Public License
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.. _elixhauserci:
Elixhauser Comorbidity Index (ElixhauserCI)
-------------------------------------------
A count (0-31) of the number of categories of comorbidity that someone has,
based on the :ref:`International Classification of Diseases `.
Intellectual property rights
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The paper Quan et al. (2005), which develops the mapping from ICD-10 codes to
disease categories, is copyright © 2005 Lippincott Williams & Wilkins. The
comorbidity terms (e.g. "congestive heart failure") are themselves believed to
be in the public domain. The ICD-10 codes (which are owned by the WHO; see
:ref:`ICD-10 diagnostic coding `) are not used in the CamCOPS
version of the task, which justs asks clinicians to score presence/absence.
History
~~~~~~~
- Elixhauser A, Steiner C, Harris DR, Coffey RM (1998).
Comorbidity measures for use with administrative data.
*Med Care.* 36: 8-27.
https://www.ncbi.nlm.nih.gov/pubmed/9431328
[Original 30-item version using ICD-9-CM codes.]
- Subsequent updates as per
http://mchp-appserv.cpe.umanitoba.ca/viewConcept.php?printer=Y&conceptID=1436,
including:
- Quan H, Sundararajan V, Halfon P, Fong A, Burnand B, Luthi JC, Saunders LD,
Beck CA, Feasby TE, Ghali WA (2005).
Coding algorithms for defining comorbidities in ICD-9-CM and ICD-10
administrative data.
*Med Care.* 43: 1130-9.
https://www.ncbi.nlm.nih.gov/pubmed/16224307
[This paper extends Elixhauser et al. (1998) to ICD-10 codes, developing an
ICD-10 coding algorithm.]
Source
~~~~~~
- http://mchp-appserv.cpe.umanitoba.ca/viewConcept.php?printer=Y&conceptID=1436