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 (P84)
  | 
	 
 
 | 
	   | 
 |  | 
	
		 G93.2 | 
		  | 
		Benign intracranial hypertension | 
	 
	
		 |  | 
		
| Pseudotumor |  	
		| Excludes1 | 
		hypertensive encephalopathy (I67.4) obstructive hydrocephalus (G91.1)
  | 
	 
 
 | 
	   | 
 |  | 
	
		 G93.3 | 
		  | 
		Postviral and related fatigue syndromes | 
	 
	
		 |  | 
		
	
		| UseAdditionalCode | 
		code, if applicable, for post COVID-19 condition, unspecified (U09.9)
  | 
	 
	
		| Excludes1 | 
		chronic fatigue NOS (R53.82) neurasthenia (F48.8)
  | 
	 
 
 | 
	  |  | 
	
		 G93.31 | 
		 | 
		Postviral fatigue syndrome | 
	 
  |   |  | 
	
		 G93.32 | 
		  | 
		Myalgic encephalomyelitis/chronic fatigue syndrome | 
	 
	
		 |  | 
		
| Chronic fatigue syndrome |  | ME/CFS |  | Myalgic encephalomyelitis |   
 | 
	   |   |  | 
	
		 G93.39 | 
		 | 
		Other post infection and related fatigue syndromes | 
	 
  |    | 
 |  | 
	
		 G93.4 | 
		  | 
		Other and unspecified encephalopathy | 
	 
	
		 |  | 
		
	
		| Excludes2 | 
		alcoholic encephalopathy (G31.2) encephalopathy in diseases classified elsewhere (G94) hypertensive encephalopathy (I67.4) toxic (metabolic) encephalopathy (G92.8)
  | 
	 
 
 | 
	  |  | 
	
		 G93.40 | 
		 | 
		Encephalopathy, unspecified | 
	 
  |   |  | 
	
		 G93.41 | 
		  | 
		Metabolic encephalopathy | 
	 
	
		 |  | 
		
 | 
	   |   |  | 
	
		 G93.42 | 
		 | 
		Megalencephalic leukoencephalopathy with subcortical cysts | 
	 
  |   |  | 
	
		 G93.43 | 
		 | 
		Leukoencephalopathy with calcifications and cysts | 
	 
  |   |  | 
	
		 G93.44 | 
		  | 
		Adult-onset leukodystrophy with axonal spheroids | 
	 
	
		 |  | 
		
| Adult-onset leukoencephalopathy with axonal spheroids and pigmented glia |   
 | 
	   |   |  | 
	
		 G93.45 | 
		  | 
		Developmental and epileptic encephalopathy | 
	 
	
		 |  | 
		
| Early infantile epileptic encephalopathy |  	
		| CodeAlso | 
		, if applicable, associated disorders such as: developmental disorders of scholastic skills (F81.-) developmental disorder of speech and language (F80.-) epilepsy, by specific type (G40.-) intellectual disabilities (F70-F79) other neurodevelopmental disorder (F88) pervasive developmental disorders (F84.-)
  | 
	 
 
 | 
	   |   |  | 
	
		 G93.49 | 
		  | 
		Other encephalopathy | 
	 
	
		 |  | 
		
 | 
	   |    | 
 |  | 
	
		 G93.5 | 
		  | 
		Compression of brain | 
	 
	
		 |  | 
		
| Arnold-Chiari type 1 compression of brain |  | Compression of brain (stem) |  | Herniation of brain (stem) |  	
		| Excludes1 | 
		traumatic compression of brain (S06.A-)
  | 
	 
 
 | 
	   | 
 |  | 
	
		 G93.6 | 
		  | 
		Cerebral edema | 
	 
	
		 |  | 
		
	
		| Excludes1 | 
		cerebral edema due to birth injury (P11.0) traumatic cerebral edema (S06.1-)
  | 
	 
 
 | 
	   | 
 |  | 
	
		 G93.7 | 
		  | 
		Reye's syndrome | 
	 
	
		 |  | 
		
	
		| CodeFirst | 
		poisoning due to salicylates, if applicable (T39.0-, with sixth character 1-4)
  | 
	 
	
		| UseAdditionalCode | 
		code for adverse effect due to salicylates, if applicable (T39.0-, with sixth character 5)
  | 
	 
	
		| age | 
		Pediatric: [0-17]
  | 
	 
 
 | 
	   | 
 |  | 
	
		 G93.8 | 
		 | 
		Other specified disorders of brain | 
	 
 |  | 
	
		 G93.81 | 
		  | 
		Temporal sclerosis | 
	 
	
		 |  | 
		
| Hippocampal sclerosis |  | Mesial temporal sclerosis |   
 | 
	   |   |  | 
	
		 G93.82 | 
		 | 
		Brain death | 
	 
  |   |  | 
	
		 G93.89 | 
		  | 
		Other specified disorders of brain | 
	 
	
		 |  | 
		
| Postradiation encephalopathy |   
 | 
	   |    | 
 |  | 
	
		 G93.9 | 
		 | 
		Disorder of brain, unspecified | 
	 
  |