ME :: Myalgic Encephalomyelitis
  CFS :: Chronic Fatigue Syndrome

The following are extracts from the US ICD-10 CM 2007(draft since 2003), it should be noted that while postviral fatigue syndrome and benign myalgic encephalomyeliyis are listed under the code G93.3 with chronic fatigue syndrome,postviral is now removed(listed in 2003 draft), and the exclusion being,(NOT CODED HERE) chronic fatigue syndrome NOS (R53.82). R53.82 is the only listing for CFS, note that R53.82 excludes postviral fatigue syndrome (G93.3)

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 malaise and fatigue (R53) postviral fatigue syndrome (G93.3) while 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)2007.

: 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
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

US ICD10 CM (page 1021)

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

US ICD10 CM (page 260)

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

US ICD10 CM (page 32)

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
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
Excludes1:viral encephalitis NOS (A86)
viral meningitis NOS (A87.9)
A88.0 Enteroviral exanthematous fever [Boston exanthem]
A88.1 Epidemic vertigo
A88.8 Other specified viral infections of central nervous system
A89 Unspecified viral infection of central nervous system
Arthropod-borne viral fevers and viral hemorrhagic fevers
US ICD-10 CM (page243)

F48 Other nonpsychotic mental disorders
F48.1 Depersonalization-derealization syndrome
F48.8 Other specified nonpsychotic mental disorders
Briquet's disorder
Dhat syndrome
Occupational neurosis, including writer's cramp
Psychasthenic neurosis
Psychogenic syncope
F48.9 Nonpsychotic mental disorder, unspecified
Neurosis NOS

WHO ICD 10 Online

F48 Other neurotic disorders
F48.0 Neurasthenia
Fatigue syndrome
Use additional code, if desired, to identify previous physical illness.
Excludes: asthenia NOS ( R53 )
burn-out ( Z73.0 )
malaise and fatigue ( R53 )
postviral fatigue syndrome ( G93.3 )
psychasthenia ( F48.8 )

FM : Fibromyalgia

FM, Fibromyalgia is coded in the ICD-10 under M79.7

M79 Other soft tissue disorders, not elsewhere classified
Excludes1:psychogenic rheumatism (F45.8)
soft tissue pain, psychogenic (F45.4)
M79.0 Rheumatism, unspecified
fibromyalgia ( M79.7 )
Excludes1:palindromic rheumatism (M12.3-)
M79.1 Myalgia
M79.6 Pain in limb
M79.7 Fibromyalgia
M79.8 Other specified soft tissue disorders

M79.9 Soft tissue disorder, unspecified

ME/CFS International Awareness Day

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