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ME :: Myalgic Encephalomyelitis

CFS :: Chronic Fatigue Syndrome

WHO :: World Health Organisation

The following are extracts from the World Health Organisation ICD-10 or US ICD-10 CM July 2007 (draft since 2003), it should be noted that postviral fatigue syndrome and benign myalgic encephalomyeliyis (chronic fatigue syndrome, postviral is listed only in the 2003 draft) are listed under the code G93.3 with the following exclusion,(NOT CODED HERE) chronic fatigue syndrome NOS (R53.82). Thus CFS is listed once 1 : 'Chronic Fatigue Syndrome NOS' (R53.82). Note that R53.82 excludes postviral fatigue syndrome (G93.3). Neither listing make any referrence to F48.

Another item of some interest is the listing for Neurasthenia, where WHO ICD-10 codes under F48.0 and the US ICD-10 CM codes neurasthenia under F48.8, the WHO excludes postviral fatigue syndrome and the US lists no exclusions.

The extracts below are all the entries for ME and CFS that I could locate within the US ICD-10 CM (tabular)

: G93 Other disorders of brain
G93.0 Cerebral cysts
Arachnoid cyst
Porencephalic cyst, acquired
Excludes1:acquired periventricular cysts of newborn (P91.1)
congenital cerebral cysts (Q04.6)
G93.1 Anoxic brain damage, not elsewhere classified
Excludes1:cerebral anoxia due to anesthesia during labor and delivery (O74.3)
cerebral anoxia due to anesthesia during the puerperium (O89.2)
neonatal anoxia (P28.9)
G93.2 Benign intracranial hypertension
Excludes1:hypertensive encephalopathy (I67.4)

G93.3 Postviral fatigue syndrome
Benign myalgic encephalomyelitis
( Chronic fatigue syndrome, postviral
only in the 2003 draft version)
Excludes1:chronic fatigue syndrome NOS (R53.82)

G93.4 Encephalopathy, not elsewhere classified
Excludes1:alcoholic encephalopathy (G31.2)
hypertensive encephalopathy (I67.4)
toxic encephalopathy (G92)
G93.40 Encephalopathy, unspecified
G93.41 Metabolic encephalopathy
Septic encephalopathy
G93.49 Other encephalopathy
Encephalopathy NEC

ICD-10-CM Tabular         Page 359         July 2007 Release

World Health Organisation online also only list 1 Postviral fatigue syndrome, 2 Benign myalgic encephalomyelitis under G93.3 code.

R53 Malaise and fatigue
R53.0 Neoplastic (malignant) related fatigue
Code first associated neoplasm
R53.1 Weakness
Asthenia NOS
Excludes1:age-related weakness (R54)
muscle weakness (M62.8-)
senile asthenia (R54)
R53.2 Functional quadriplegia
Excludes1:hysterical paralysis (F44.4)
immobility syndrome (M62.3)
neurologic quadriplegia (G82.5-)
R53.8 Other malaise and fatigue
Excludes1:combat exhaustion and fatigue (F43.0)
congenital debility (P96.9)
exhaustion and fatigue due to:
depressive episode (F32.-)
excessive exertion (T73.3)
exposure (T73.2)
heat (T67.-)
pregnancy (O26.8-)
recurrent depressive episode (F33)
senile debility (R54)
R53.81 Other malaise
Chronic debility
Debility NOS
General physical deterioration
Malaise NOS
Nervous debility
Excludes1: age-related physical debility (R54)

R53.82 Chronic fatigue, unspecified
Chronic fatigue syndrome NOS
Excludes1 postviral fatigue syndrome (G93.3)

R53.83 Other fatigue
Fatigue NOS
Lack of energy

ICD-10-CM Tabular         Page 1348         July 2007 Release

World Health Organisation online only list Chronic Fatigue Syndrome in R53, Malaise and fatigue, Tabular List and not in the index as with PVFS and ME.

G04 Encephalitis, myelitis and encephalomyelitis
Includes: acute ascending myelitis
Excludes1:encephalopathy NOS (G93.40)
Excludes2:acute transverse myelitis (G37.3)
alcoholic encephalopathy (G31.2)
benign myalgic encephalomyelitis (G93.3)
toxic encephalopathy (G92)
multiple sclerosis (G35)
subacute necrotizing myelitis (G37.4)
G04.0 Acute disseminated encephalitis
Encephalitis, postimmunization
Encephalomyelitis, postimmunization

ICD-10-CM Tabular         Page 314         July 2007 Release

A84 Tick-borne viral encephalitis
Includes: tick-borne viral meningoencephalitis
A84.0 Far Eastern tick-borne encephalitis [Russian spring-summer encephalitis]
A84.1 Central European tick-borne encephalitis
A84.8 Other tick-borne viral encephalitis
Louping ill
Powassan virus disease
A84.9 Tick-borne viral encephalitis, unspecified

ICD-10-CM Tabular           Page 33           July 2007 Release

A85 Other viral encephalitis, not elsewhere classified
Includes: specified viral encephalomyelitis NEC
specified viral meningoencephalitis NEC
Excludes1:benign myalgic encephalomyelitis (G93.3)
encephalitis due to:
cytomegalovirus (B25.8)
herpesvirus [herpes simplex] (B00.4)
measles virus (B05.0)
mumps virus (B26.2)
poliomyelitis virus (A80.-)
zoster (B02.0)
lymphocytic choriomeningitis (A87.2)
A85.0 Enteroviral encephalitis
Enteroviral encephalomyelitis
A85.1 Adenoviral encephalitis
Adenoviral meningoencephalitis
A85.2 Arthropod-borne viral encephalitis, unspecified
Excludes1:West nile virus with encephalitis (A92.31)
A85.8 Other specified viral encephalitis
Encephalitis lethargica
Von Economo-Cruchet disease
A86 Unspecified viral encephalitis
Includes: viral encephalomyelitis NOS
viral meningoencephalitis NOS
A87 Viral meningitis
Excludes1:meningitis due to:
herpesvirus [herpes simplex] (B00.3)
measles virus (B05.1)
mumps virus (B26.1)
poliomyelitis virus (A80.-)
zoster (B02.1)
A87.0 Enteroviral meningitis
Coxsackievirus meningitis
Echovirus meningitis
A87.1 Adenoviral meningitis
A87.2 Lymphocytic choriomeningitis
Lymphocytic meningoencephalitis
A87.8 Other viral meningitis
A87.9 Viral meningitis, unspecified
A88 Other viral infections of central nervous system, not elsewhere

ICD-10-CM Tabular           Page 34           July 2007 Release

F48 Other nonpsychotic mental disorders
F48.1 Depersonalization-derealization syndrome
F48.8 Other specified nonpsychotic mental disorders
Dhat syndrome
Occupational neurosis, including writer's cramp
(Psychasthenia: an umbrella term used to cover all psychoneurosis not classified as hysteria, phobias, or anxiety.)
Psychasthenic neurosis
Psychogenic syncope
F48.9 Nonpsychotic mental disorder, unspecified
Neurosis NOS

ICD-10-CM Tabular           Page 298           July 2007 Release

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