|  Z99 |  | Dependence on enabling machines and devices, not elsewhere classified   | 
|  |  | 
	
		|  Z99.0 |  | Dependence on aspirator |  
		|  |  |  |  | 
|  |  | 
	
		|  Z99.1 |  | Dependence on respirator |  
		|  |  |  |  |  |  | 
	
		|  Z99.11 |  | Dependence on respirator [ventilator] status |  
		|  |  |  |  |  |  |  | 
	
		|  Z99.12 |  | Encounter for respirator [ventilator] dependence during power failure |  
		|  |  | 
	
		| Excludes1 | mechanical complication of respirator [ventilator] (J95.850) 
 |  |  |  | 
|  |  | 
	
		|  Z99.2 |  | Dependence on renal dialysis |  
		|  |  | 
| Hemodialysis status |  | Peritoneal dialysis status |  | Presence of arteriovenous shunt for dialysis |  | Renal dialysis status NOS |  
		| Excludes1 | encounter for fitting and adjustment of dialysis catheter (Z49.0-) 
 |  
		| Excludes2 | noncompliance with renal dialysis (Z91.15-) 
 |  
		| nonPrimary | Yes 
 |  |  | 
|  |  | 
	
		|  Z99.3 |  | Dependence on wheelchair |  
		|  |  | 
| Wheelchair confinement status |  
		| CodeFirst | cause of dependence, such as: muscular dystrophy (G71.0-)
 obesity (E66.-)
 
 |  
		| nonPrimary | Yes 
 |  |  | 
|  |  | 
	
		|  Z99.8 |  | Dependence on other enabling machines and devices |  |  |  | 
	
		|  Z99.81 |  | Dependence on supplemental oxygen |  
		|  |  | 
| Dependence on long-term oxygen |  
		| nonPrimary | Yes 
 |  |  |  |  |  | 
	
		|  Z99.89 |  | Dependence on other enabling machines and devices |  
		|  |  | 
| Dependence on machine or device NOS |  
		| nonPrimary | Yes 
 |  |  |  |