I understand it such that the IOM report proposed to separate CF/Neurasthenia and ME/CFS, which WHO already does, only some countries (like Canada and US?) still have this connection. I think this is quite reasonable.
Inara, to clarify:
The
Canadian Tabular List (
ICD-10-CA Tabular List) has for a number of years had
all three terms in the Neurological chapter under G93.3, as does the German clinical modification (ICD-10-GM).
The U.S. is the
only country that has Chronic fatigue syndrome (as "Chronic fatigue syndrome NOS") coded under the
Symptoms, signs chapter, as an inclusion under
R53.82 Chronic fatigue, unspecified.
All other ICD-10 users (apart from the Canadian and German modifications) have PVFS and BME coded in the Tabular List at G93.3, with Chronic fatigue syndrome in the Alphabetical Index, where it is indexed to the G93.3 code.
This is how the draft for the U.S.'s adaptation of ICD-10 (ICD-10-CM) had stood in 2003:
Draft ICD-10-CM June 2003 release:
https://dxrevisionwatch.files.wordpress.com/2015/03/icd-10-cm-draft-2003.pdf
(In ICD-10, "NOS" means "Not otherwise specified")
In 2004, it was decided by CDC/Bill Reeves, behind closed doors, that the
"Chronic fatigue syndrome, postviral" category under G93.3 would be deleted, leaving the only CFS category as
"Chronic fatigue syndrome NOS" under R53.82.
No draft was released in the years 2004, 2005 or 2006.
This is how things stood for the draft that was released in 2007 (which reflects the deletion made by Bill Reeves, in 2004):
Draft ICD-10-CM July 2007 release:
https://dxrevisionwatch.files.wordpress.com/2015/03/2007-tabular-list-release.pdf
Note: the
"Chronic fatigue syndrome, postviral" inclusion term has been deleted from G93.3, leaving a
"Chronic fatigue syndrome NOS" in the Symptoms, signs chapter, as an inclusion under
"Chronic fatigue, unspecified".
For a history of the coding of PVFS, ME and CFS in ICD-9, ICD-9-CM, ICD-10 and the draft for ICD-10-CM up to March 2001, see this archived CDC document:
A Summary of Chronic Fatigue Syndrome and Its Classification in the International Classification of Diseases
Prepared by the Centers for Disease Control and Prevention, National Center for Health Statistics, Office of the Center Director, Data Policy and Standards,
CDC archive document, March 2001.
For the classification of PVFS and BME in the
ICD-8 Tabular List (1967) and the
ICD-8 Alphabetical Index (1969) and for the classification of these terms in the
ICD-9 Tabular List (1975) and the
ICD-9 Alphabetical Index see this post, which includes screenshots from these editions, as archived on the WHO IRIS website:
https://www.s4me.info/threads/who-w...-leads-to-poor-outcome.5109/page-9#post-96715
The term "Benign myalgic encephalomyelitis" wasn't coded under "Postviral fatigue syndrome" at G93.3 until ICD-10 was published, in 1992:
"ICD-10
"WHO published ICD-10 in 1992 and included many modifications, among them relocation of some diagnoses to different chapters within the classification. WHO created a new category G93, Other disorders of brain, in Chapter VI, Diseases of the Nervous System, and created a new code G93.3, Postviral fatigue syndrome, a condition which was previously in the symptom chapter of ICD-9. WHO also moved benign myalgic encephalomyelitis to the new code G93.3. The alphabetic index contains other terms, such as chronic fatigue syndrome, that WHO considers synonymous or clinically similar." [1]
1 A Summary of Chronic Fatigue Syndrome and Its Classification in the International Classification of Diseases
Prepared by the Centers for Disease Control and Prevention, National Center for Health Statistics, Office of the Center Director, Data Policy and Standards, CDC archive document, March 2001.
