| G93.0 | 
	Cerebral cysts 
Arachnoid cyst 
Porencephalic cyst, acquired 
Excludes:
- acquired periventricular cysts of newborn ( P91.1 ) 
 - congenital cerebral cysts ( Q04.6 ) 
  
 | 
	| G93.1 | 
	Anoxic brain damage, not elsewhere classified 
Excludes:
- complicating:
 
 - abortion or ectopic or molar pregnancy ( O00-O07 , O08.8 )
 
 - pregnancy, labour or delivery ( O29.2 , O74.3 , O89.2 )
 
 - surgical and medical care ( T80-T88 )
 
 - neonatal anoxia ( P21.9 )
  
 | 
	| G93.2 | 
	Benign intracranial hypertension 
Excludes:
- hypertensive encephalopathy ( I67.4 )
  
 | 
	| G93.3 | 
	Postviral fatigue syndrome 
Benign myalgic encephalomyelitis 
 | 
	| G93.4 | 
	Encephalopathy, unspecified 
Excludes:
- encephalopathy:
 
 - alcoholic ( G31.2 )
 
 - toxic ( G92 )
 
  
 | 
	| G93.5 | 
	Compression of brain (of brain (stem)) 
Compression 
Herniation 
Excludes:
- traumatic compression of brain (diffuse) ( S06.2 )
 
 - focal ( S06.3 )
 
  
 | 
	| G93.6 | 
	Cerebral oedema 
Excludes:
- cerebral oedema:
 
 - due to birth injury ( P11.0 )
 
 - traumatic ( S06.1 )
 
  
 | 
	| G93.7 | 
	Reye's syndrome 
Use additional external cause code (Chapter XX), if desired, to identify cause.
 | 
	| G93.8 | 
	Other specified disorders of brain 
Postradiation encephalopathy 
 
Use additional external cause code (Chapter XX), if desired, to identify cause. 
 | 
	| G93.9 | 
	Disorder of brain, unspecified 
 |