Z28 | 
		  | 
		Immunization not carried out and underimmunization status   | 
	
	
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		| Includes | 
		vaccination not carried out
  | 
	 
	
		| CodeAlso | 
		, if applicable, encounter for immunization safety counseling (Z71.85)
  | 
	 
 
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		 Z28.0 | 
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		Immunization not carried out because of contraindication | 
	 
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		 Z28.01 | 
		  | 
		Immunization not carried out because of acute illness of patient | 
	 
	
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		 Z28.02 | 
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		Immunization not carried out because of chronic illness or condition of patient | 
	 
	
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		 Z28.03 | 
		  | 
		Immunization not carried out because of immune compromised state of patient | 
	 
	
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		 Z28.04 | 
		  | 
		Immunization not carried out because of patient allergy to vaccine or component | 
	 
	
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	   |   |  | 
	
		 Z28.09 | 
		  | 
		Immunization not carried out because of other contraindication | 
	 
	
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		 Z28.1 | 
		  | 
		Immunization not carried out because of patient decision for reasons of belief or group pressure | 
	 
	
		 |  | 
		
| Immunization not carried out because of religious belief |  	
		| nonPrimary | 
		Yes
  | 
	 
 
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	   | 
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		 Z28.2 | 
		 | 
		Immunization not carried out because of patient decision for other and unspecified reason | 
	 
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		 Z28.20 | 
		  | 
		Immunization not carried out because of patient decision for unspecified reason | 
	 
	
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		 Z28.21 | 
		  | 
		Immunization not carried out because of patient refusal | 
	 
	
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		 Z28.29 | 
		  | 
		Immunization not carried out because of patient decision for other reason | 
	 
	
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		 Z28.3 | 
		  | 
		Underimmunization status | 
	 
	
		 |  | 
		
	
		| UseAdditionalCode | 
		code, if applicable, to identify: immunization not carried out because of contraindication (Z28.0-) immunization not carried out because of patient decision for other and unspecified reason (Z28.2-) immunization not carried out because of patient decision for reasons of belief or group pressure (Z28.1) immunization not carried out for other reason (Z28.8-)
  | 
	 
	
		| nonPrimary | 
		Yes
  | 
	 
 
 | 
	  |  | 
	
		 Z28.31 | 
		  | 
		Underimmunization for COVID-19 status | 
	 
	
		 |  | 
		
	
		| Notes | 
		These codes should not be used for individuals who are not eligible for the COVID-19 vaccines, as determined by the healthcare provider.
  | 
	 
 
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	  |  | 
	
		 Z28.310 | 
		 | 
		Unvaccinated for COVID-19 | 
	 
  |   |  | 
	
		 Z28.311 | 
		 | 
		Partially vaccinated for COVID-19 | 
	 
  |    |   |  | 
	
		 Z28.39 | 
		  | 
		Other underimmunization status | 
	 
	
		 |  | 
		
| Delinquent immunization status |  | Lapsed immunization schedule status |   
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	   |    | 
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		 Z28.8 | 
		 | 
		Immunization not carried out for other reason | 
	 
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		 Z28.81 | 
		  | 
		Immunization not carried out due to patient having had the disease | 
	 
	
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		 Z28.82 | 
		  | 
		Immunization not carried out because of caregiver refusal | 
	 
	
		 |  | 
		
| Immunization not carried out because of guardian refusal |  | Immunization not carried out because of parent refusal |  	
		| Excludes1 | 
		immunization not carried out because of caregiver refusal because of religious belief (Z28.1)
  | 
	 
	
		| nonPrimary | 
		Yes
  | 
	 
 
 | 
	   |   |  | 
	
		 Z28.83 | 
		  | 
		Immunization not carried out due to unavailability of vaccine | 
	 
	
		 |  | 
		
| Delay in delivery of vaccine |  | Lack of availability of vaccine |  | Manufacturer delay of vaccine |  	
		| nonPrimary | 
		Yes
  | 
	 
 
 | 
	   |   |  | 
	
		 Z28.89 | 
		  | 
		Immunization not carried out for other reason | 
	 
	
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	   |    | 
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		 Z28.9 | 
		  | 
		Immunization not carried out for unspecified reason | 
	 
	
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