|  G99 |  | Other disorders of nervous system in diseases classified elsewhere  | 
|  |  | 
	
		|  G99.0 |  | Autonomic neuropathy in diseases classified elsewhere |  
		|  |  | 
	
		| CodeFirst | underlying disease, such as: amyloidosis (E85.-)
 gout (M1A.-, M10.-)
 hyperthyroidism (E05.-)
 
 |  
		| Excludes1 | diabetic autonomic neuropathy (E08-E13 with .43) 
 |  
		| nonPrimary | Yes 
 |  |  | 
|  |  | 
	
		|  G99.2 |  | Myelopathy in diseases classified elsewhere |  
		|  |  | 
	
		| CodeFirst | underlying disease, such as: neoplasm (C00-D49)
 
 |  
		| Excludes1 | myelopathy in: intervertebral disease (M50.0-, M51.0-)
 spondylosis (M47.0-, M47.1-)
 
 |  
		| nonPrimary | Yes 
 |  |  | 
|  |  | 
	
		|  G99.8 |  | Other specified disorders of nervous system in diseases classified elsewhere |  
		|  |  | 
	
		| CodeFirst | underlying disorder, such as: amyloidosis (E85.-)
 avitaminosis (E56.-)
 
 |  
		| Excludes1 | nervous system involvement in: cysticercosis (B69.0)
 rubella (B06.0-)
 syphilis (A52.1-)
 
 |  
		| nonPrimary | Yes 
 |  |  |