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/tree/main and changes regularly. See the Directory of published versions
| Official URL: http://smart.who.int/immunizations/ValueSet/IMMZD2DTTyphoidTy21aVS | Version: 0.2.0 | |||
| Active as of 2025-11-25 | Computable Name: IMMZD2DTTyphoidTy21aVS | |||
ValueSet IMMZD2DTTyphoidTy21a for IMMZ.D2.DT.Typhoid.Ty21a. Business rule: Determine if the client is due for a typhoid vaccination according to the national immunization schedule Trigger: IMMZ.D2 Determine required vaccination(s) if any Table: Live attenuated Ty21a vaccine schedule
References
This value set is not used here; it may be used elsewhere (e.g. specifications and/or implementations that use this content)
http://smart.who.int/immunizations/CodeSystem/IMMZDAK version 📦0.2.0| Code | Display | Definition |
| Client's age is less than 6 years-40 | Client's age is less than 6 years | Today's date − "Date of birth" < 6 years |
| Client is not due for Typhoid vaccination-48 | Client is not due for Typhoid vaccination | "Immunization recommendation status" = "Not due" |
| Client's age is more than or equal to 6 years-40 | Client's age is more than or equal to 6 years | Today's date − "Date of birth" ≥ 6 years |
| Primary series is not complete-93 | Primary series is not complete | "Completed the primary vaccination series" (where "Vaccine type" = "Typhoid vaccines") ≠ TRUE |
| No live vaccine, other than typhoid, was administered in the past 4 weeks-132 | No live vaccine, other than typhoid, was administered in the past 4 weeks | Today's date − latest "Date and time of vaccination" (where "Live vaccine" = TRUE AND "Vaccine type" ≠ "Typhoid vaccines") ≥ 4 weeks |
| Client is due for Typhoid vaccination-44 | Client is due for Typhoid vaccination | "Immunization recommendation status" = "Due" |
| Live vaccine, other than typhoid, was administered in the past 4 weeks-132 | Live vaccine, other than typhoid, was administered in the past 4 weeks | Today's date − latest "Date and time of vaccination" (where "Live vaccine" = TRUE AND "Vaccine type" ≠ "Typhoid vaccines") < 4 weeks |
| Primary series is complete-93 | Primary series is complete | "Completed the primary vaccination series" (where "Vaccine type" = "Typhoid vaccines") = TRUE |
| The latest typhoid dose was administered less than 3 years ago-106 | The latest typhoid dose was administered less than 3 years ago | Today's date − latest "Date and time of vaccination" (where "Vaccine type" = "Typhoid vaccines") < 3 years |
| Client is not due for typhoid booster dose-48 | Client is not due for typhoid booster dose | "Immunization recommendation status" = "Not due" |
| The latest typhoid dose was administered more than 3 years ago-106 | The latest typhoid dose was administered more than 3 years ago | Today's date − latest "Date and time of vaccination" (where "Vaccine type" = "Typhoid vaccines") ≥ 3 years |
| Client is due for typhoid booster dose-44 | Client is due for typhoid booster dose | "Immunization recommendation status" = "Due" |
This value set expansion contains 12 concepts.
| System | Code | Display | JSON | XML |
http://smart.who.int/immunizations/CodeSystem/IMMZDAK | Client's age is less than 6 years-40 | Client's age is less than 6 years | ||
http://smart.who.int/immunizations/CodeSystem/IMMZDAK | Client is not due for Typhoid vaccination-48 | Client is not due for Typhoid vaccination | ||
http://smart.who.int/immunizations/CodeSystem/IMMZDAK | Client's age is more than or equal to 6 years-40 | Client's age is more than or equal to 6 years | ||
http://smart.who.int/immunizations/CodeSystem/IMMZDAK | Primary series is not complete-93 | Primary series is not complete | ||
http://smart.who.int/immunizations/CodeSystem/IMMZDAK | No live vaccine, other than typhoid, was administered in the past 4 weeks-132 | No live vaccine, other than typhoid, was administered in the past 4 weeks | ||
http://smart.who.int/immunizations/CodeSystem/IMMZDAK | Client is due for Typhoid vaccination-44 | Client is due for Typhoid vaccination | ||
http://smart.who.int/immunizations/CodeSystem/IMMZDAK | Live vaccine, other than typhoid, was administered in the past 4 weeks-132 | Live vaccine, other than typhoid, was administered in the past 4 weeks | ||
http://smart.who.int/immunizations/CodeSystem/IMMZDAK | Primary series is complete-93 | Primary series is complete | ||
http://smart.who.int/immunizations/CodeSystem/IMMZDAK | The latest typhoid dose was administered less than 3 years ago-106 | The latest typhoid dose was administered less than 3 years ago | ||
http://smart.who.int/immunizations/CodeSystem/IMMZDAK | Client is not due for typhoid booster dose-48 | Client is not due for typhoid booster dose | ||
http://smart.who.int/immunizations/CodeSystem/IMMZDAK | The latest typhoid dose was administered more than 3 years ago-106 | The latest typhoid dose was administered more than 3 years ago | ||
http://smart.who.int/immunizations/CodeSystem/IMMZDAK | Client is due for typhoid booster dose-44 | Client is due for typhoid booster dose |
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 |
JSON Schema for IMMZD2DTTyphoidTy21a ValueSet for Decision Table ValueSet codes. Generated from FHIR expansions using IRI format.
Version: 1.0.0
This endpoint serves the JSON Schema definition for the enumeration ValueSet-IMMZD2DTTyphoidTy21aVS.
Description: JSON Schema for IMMZD2DTTyphoidTy21a ValueSet for Decision Table ValueSet codes. Generated from FHIR expansions using IRI format.
Type: string
Schema ID: http://smart.who.int/immunizations/ValueSet-IMMZD2DTTyphoidTy21aVS.schema.json
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "http://smart.who.int/immunizations/ValueSet-IMMZD2DTTyphoidTy21aVS.schema.json",
"title": "IMMZD2DTTyphoidTy21a ValueSet for Decision Table Schema",
"description": "JSON Schema for IMMZD2DTTyphoidTy21a ValueSet for Decision Table ValueSet codes. Generated from FHIR expansions using IRI format.",
"type": "string",
"enum": [
"http://smart.who.int/immunizations/CodeSystem/IMMZDAK#Client's age is less than 6 years-40",
"http://smart.who.int/immunizations/CodeSystem/IMMZDAK#Client is not due for Typhoid vaccination-48",
"http://smart.who.int/immunizations/CodeSystem/IMMZDAK#Client's age is more than or equal to 6 years-40",
"http://smart.who.int/immunizations/CodeSystem/IMMZDAK#Primary series is not complete-93",
"http://smart.who.int/immunizations/CodeSystem/IMMZDAK#No live vaccine, other than typhoid, was administered in the past 4 weeks-132",
"http://smart.who.int/immunizations/CodeSystem/IMMZDAK#Client is due for Typhoid vaccination-44",
"http://smart.who.int/immunizations/CodeSystem/IMMZDAK#Live vaccine, other than typhoid, was administered in the past 4 weeks-132",
"http://smart.who.int/immunizations/CodeSystem/IMMZDAK#Primary series is complete-93",
"http://smart.who.int/immunizations/CodeSystem/IMMZDAK#The latest typhoid dose was administered less than 3 years ago-106",
"http://smart.who.int/immunizations/CodeSystem/IMMZDAK#Client is not due for typhoid booster dose-48",
"http://smart.who.int/immunizations/CodeSystem/IMMZDAK#The latest typhoid dose was administered more than 3 years ago-106",
"http://smart.who.int/immunizations/CodeSystem/IMMZDAK#Client is due for typhoid booster dose-44"
],
"narrative": "This schema validates IRI-formatted codes for the IMMZD2DTTyphoidTy21a ValueSet for Decision Table ValueSet. Each enum value includes the system URI in the format {systemuri}#{code} to match JSON-LD enumeration IRIs. Display values are available at http://smart.who.int/immunizations/ValueSet-IMMZD2DTTyphoidTy21aVS.displays.json. For a complete listing of all ValueSets, see artifacts.html#terminology-value-sets.",
"fhir:displays": "http://smart.who.int/immunizations/ValueSet-IMMZD2DTTyphoidTy21aVS.displays.json",
"fhir:valueSet": "http://smart.who.int/immunizations/ValueSet/IMMZD2DTTyphoidTy21aVS",
"fhir:version": "0.2.0",
"fhir:expansionTimestamp": "2025-09-29T20:59:26.458Z"
}This documentation is automatically generated from the OpenAPI specification.