Under its “Comparison of Existing Diagnostic Criteria,” the IOM Report states, “While all (
sic) of the criteria make clear that they are describing the same illness, some vary in the terminology used to refer to the illness or to specific symptoms."
[1] The AHRQ Evidence Report,
[2] however, finds to the contrary:
The case definitions overlap but vary greatly in their symptom set, leading to concern that they do not all represent the same disease or identify the same cohort of patients.[7] The international ME consensus panel of experts recommends that patients meeting the International Consensus Criteria (ICC) be given the name ME, and that those meeting the criteria for CFS but not the ICC for ME be given the name CFS.[7]
The IOM Report acknowledges that patients who fulfill the ME-ICC have “more severe functional impairment and more physical, mental, and cognitive problems than those that fulfill the Fukuda definition.”
[1] But it fails to report that the International Consensus Panel of experts recommends:
“Individuals meeting the International Consensus Criteria have myalgic encephalomyelitis and should be removed from the Reeves empirical criteria and the National Institute for Clinical Excellence (NICE) criteria for chronic fatigue syndrome;
[3]”
“Patients diagnosed using broader or other criteria for CFS or its hybrids (Oxford, Reeves, London, Fukuda, CCC, etc.) should be reassessed with the ICC. Those who fulfill the criteria have ME; those who do not would remain in the more encompassing CFS classification;
[4]” and
“
Remove patients who satisfy the ICC from the broader category of CFS.... Not only is it common sense to extricate ME patients from the assortment of conditions assembled under the CFS umbrella, it is compliant with the WHO classification rule that a disease cannot be classified under more than one rubric.
[4]”
ME and CFS are classified as mutually exclusive ICD-10-CM diagnoses. Why does the IOM definition not exclude ME?
_________
1. Institute of Medicine. Beyond Myalgic Encephalomyelitis / Chronic Fatigue Syndrome: Redefining an Illness. February 2015.
2. Smith ME Beth, Nelson, Heidi D et al. Diagnosis and Treatment of Myalgic Encephalomyelitis / Chronic Fatigue Syndrome Evidence Report / Technology Assessment Number 219. AHRQ Publication No.15-E001-EF December 2014.
3. Carruthers BM, van de Sande MI, De Meirleir KL et al. Myalgic encephalomyelitis: International Consensus Criteria. J Intern Med 2011;270(4): 327-38. PMID: 21777306.
4. Carruthers BM, van de Sande MI, De Meirleir K, et al. Myalgic Encephalomyelitis – Adult & Paediatric: International Consensus Primer for Medical Practitioners. 2012.