WHO Immunization Implementation Guide
0.2.0 - ci-build
WHO Immunization Implementation Guide, published by WHO. This guide is not an authorized publication; it is the continuous build for version 0.2.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/WorldHealthOrganization/smart-immunizations/ and changes regularly. See the Directory of published versions
| Official URL: http://smart.who.int/immunizations/ValueSet/IMMZ.D2.DT.Varicella.2Dose | Version: 0.2.0 | |||
| Active as of 2025-09-17 | Computable Name: IMMZ_D2_DT_Varicella_2_doses | |||
ValueSet IMMZ.D2.DT.Varicella.2Dose for IMMZ.D2.DT.Varicella.2 doses.
Business rule: Determine if the client is due for a varicella vaccination according to the national immunization schedule
Trigger: IMMZ.D2 Determine required vaccination(s) if any
Table: 2-dose schedule
References
This value set is not used here; it may be used elsewhere (e.g. specifications and/or implementations that use this content)
This value set includes codes based on the following rules:
http://smart.who.int/immunizations/CodeSystem/IMMZ.D2.DT.Inputs| Code | Display | Definition |
| csailt12m-35.42 | Client's age is less than 12 months | Today's date − "Date of birth" < 12 months |
| lvwaitp4w-49.92 | Live vaccine was administered in the past 4 weeks | Today's date − latest "Date and time of vaccination" (where "Live vaccine" = TRUE) < 4 weeks |
| nlvwaitp4w-52.92 | No live vaccine was administered in the past 4 weeks | Today's date − latest "Date and time of vaccination" (where "Live vaccine" = TRUE) ≥ 4 weeks |
| csaimtoet12m-46.42 | Cient's age is more than or equal to 12 months | Today's date − "Date of birth" ≥ 12 months |
| nvpsdwa-51.129 | No varicella primary series doses were administered | Count of vaccines administered (where "Vaccine type" = "Varicella-containing vaccines" and "Type of dose" = "Primary series") = 0 |
| ovpsdwa-50.128 | One varicella primary series dose was administered | Count of vaccines administered (where "Vaccine type" = "Varicella-containing vaccines" and "Type of dose" = "Primary series") =1 |
| tlvdalt4wa-60.112 | The latest varicella dose administered less than 4 weeks ago | Today's date − "Date and time of vaccination" (where "Vaccine type" = "Varicella-containing vaccines") < 4 weeks |
| tlvdamt4wa-60.112 | The latest varicella dose administered more than 4 weeks ago | Today's date − "Date and time of vaccination" (where "Vaccine type" = "Varicella-containing vaccines") ≥ 4 weeks |
| tvpsdwa-52.129 | Two varicella primary series doses were administered | Count of vaccines administered (where "Vaccine type" = "Varicella-containing vaccines" and "Type of dose" = "Primary series") = 2 |
http://smart.who.int/immunizations/CodeSystem/IMMZ.D2.DT.Outputs
| Code | Display | Definition |
| cindfvv-43.48 | Client is not due for varicella vaccination | "Immunization recommendation status" = "Not due" |
| cidfvv-39.44 | Client is due for varicella vaccination | "Immunization recommendation status" = "Due" |
| visic-43.49 | Varicella immunization schedule is complete | "Immunization recommendation status" = "Complete" |
This value set expansion contains 12 concepts.
| Code | System | Display | Definition |
| csailt12m-35.42 | http://smart.who.int/immunizations/CodeSystem/IMMZ.D2.DT.Inputs | Client's age is less than 12 months | Today's date − "Date of birth" < 12 months |
| lvwaitp4w-49.92 | http://smart.who.int/immunizations/CodeSystem/IMMZ.D2.DT.Inputs | Live vaccine was administered in the past 4 weeks | Today's date − latest "Date and time of vaccination" (where "Live vaccine" = TRUE) < 4 weeks |
| nlvwaitp4w-52.92 | http://smart.who.int/immunizations/CodeSystem/IMMZ.D2.DT.Inputs | No live vaccine was administered in the past 4 weeks | Today's date − latest "Date and time of vaccination" (where "Live vaccine" = TRUE) ≥ 4 weeks |
| csaimtoet12m-46.42 | http://smart.who.int/immunizations/CodeSystem/IMMZ.D2.DT.Inputs | Cient's age is more than or equal to 12 months | Today's date − "Date of birth" ≥ 12 months |
| nvpsdwa-51.129 | http://smart.who.int/immunizations/CodeSystem/IMMZ.D2.DT.Inputs | No varicella primary series doses were administered | Count of vaccines administered (where "Vaccine type" = "Varicella-containing vaccines" and "Type of dose" = "Primary series") = 0 |
| ovpsdwa-50.128 | http://smart.who.int/immunizations/CodeSystem/IMMZ.D2.DT.Inputs | One varicella primary series dose was administered | Count of vaccines administered (where "Vaccine type" = "Varicella-containing vaccines" and "Type of dose" = "Primary series") =1 |
| tlvdalt4wa-60.112 | http://smart.who.int/immunizations/CodeSystem/IMMZ.D2.DT.Inputs | The latest varicella dose administered less than 4 weeks ago | Today's date − "Date and time of vaccination" (where "Vaccine type" = "Varicella-containing vaccines") < 4 weeks |
| tlvdamt4wa-60.112 | http://smart.who.int/immunizations/CodeSystem/IMMZ.D2.DT.Inputs | The latest varicella dose administered more than 4 weeks ago | Today's date − "Date and time of vaccination" (where "Vaccine type" = "Varicella-containing vaccines") ≥ 4 weeks |
| tvpsdwa-52.129 | http://smart.who.int/immunizations/CodeSystem/IMMZ.D2.DT.Inputs | Two varicella primary series doses were administered | Count of vaccines administered (where "Vaccine type" = "Varicella-containing vaccines" and "Type of dose" = "Primary series") = 2 |
| cindfvv-43.48 | http://smart.who.int/immunizations/CodeSystem/IMMZ.D2.DT.Outputs | Client is not due for varicella vaccination | "Immunization recommendation status" = "Not due" |
| cidfvv-39.44 | http://smart.who.int/immunizations/CodeSystem/IMMZ.D2.DT.Outputs | Client is due for varicella vaccination | "Immunization recommendation status" = "Due" |
| visic-43.49 | http://smart.who.int/immunizations/CodeSystem/IMMZ.D2.DT.Outputs | Varicella immunization schedule is complete | "Immunization recommendation status" = "Complete" |
Explanation of the columns that may appear on this page:
| Level | A few code lists that FHIR defines are hierarchical - each code is assigned a level. In this scheme, some codes are under other codes, and imply that the code they are under also applies |
| System | The source of the definition of the code (when the value set draws in codes defined elsewhere) |
| Code | The code (used as the code in the resource instance) |
| Display | The display (used in the display element of a Coding). If there is no display, implementers should not simply display the code, but map the concept into their application |
| Definition | An explanation of the meaning of the concept |
| Comments | Additional notes about how to use the code |