SNOMED International updated its organism content related to N meningitidis in 2019, and updated the FSN from “Neisseria meningitidis serogroup W-135 (organism)” to “Neisseria meningitidis serogroup W (organism)|”. Serogroup W135 is now an acceptable synonym for serogroup W. SNOMED CT’s organism hierarchy is updated and in alignment with current naming conventions for Neisseria meningitidis, which considers serogroup W and W-135 equivalent (Tzeng, et. al.).
The vaccine products containing only Neisseria meningitidis serogroup A, C, W135 and Y antigens (medicinal product) will require an update, as the Serogroup W and W-135 can now be considered equivalent.
Reference: Tzeng, Y.-L.; Stephens, D.S. A Narrative Review of the W, X, Y, E, and NG of Meningococcal Disease: Emerging Capsular Groups, Pathotypes, and Global Control. Microorganisms 2021, 9, 519.
This change will also impact the generic concepts that contain the W-135. Please refer to the VaccineHistoricalNameCode page for the details.
All concepts related to Neisseria meningitidis serogroup A, C, W135 and Y antigens will be reviewed and the necessary RFCs processed for the Canadian and International editions by the next releases.
The below sections are currently under review due to the Immunization RedesignIf you have questions or need information, please contact us |
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This content is intended to be used to query the antigens as active ingredient substances of vaccines that were administered. This is to facilitate immunization forecast management. It consists of concepts from the Substance class and the SNOMED CT Substance hierarchy.
The scope of this subset is to describe antigens contained within the vaccines (based on VaccineHistoricalNameCode subset) that may be administered to or have been received by a patient. In some cases more than one antigen per disease or pathogen may be included when the sub-type, serotype or formulation (adjuvant) is relevant (e.g. pneumococcal conjugate and pneumococcal polysaccharide). This is to facilitate population of a comprehensive immunization history, forecasting and inventory management.
For example:
2. Bordetella pertussis antigen (substance)
The format for the Fully Specified Name (FSN) is as follows:
Antigen Name (strength) (substance) or (product)
E.g.: Bordetella pertussis antigen (substance)
E.g.: Pertussis antigen low dose (substance)
For example: Hepatitis B antigen dialysis strength
Note: Exceptions to the pattern are as follows:
Diphtheria antigen (Not in Antigen subset)
Diphtheria toxoid
Diphtheria toxoid low dose
Diphtheria toxoid standard dose
Pertussis antigen (No toxoid formulation for this type of antigen)
Pertussis antigen low dose
Pertussis antigen standard dose
Acellular pertussis antigen
Acellular pertussis antigen low dose
Acellular pertussis antigen standard dose
Whole cell pertussis antigen
Tetanus toxoid (Tetanus antigen not required)
Streptococcus pneumoniae antigen (on international concepts) = pneumococcal antigen
Pneumococcal polysaccharide antigen
Pneumococcal conjugate antigen
Poliomyelitis antigen
inactivated poliomyelitis antigen
live poliomyelitis antigen
Neisseria meningitidis antigen (on international concepts) = meningococcal antigen
Meningococcal group A antigen
Meningococcal group C antigen
Meningococcal group W135 antigen
Meningococcal group Y antigen
Meningococcal conjugate antigen
Meningococcal conjugate group A antigen
Meningococcal conjugate group C antigen
Meningococcal conjugate group W135 antigen
Meningococcal conjugate group Y antigen
Meningococcal polysaccharide antigen
Meningococcal polysaccharide group A antigen
Meningococcal polysaccharide group C antigen
Meningococcal polysaccharide group W135 antigen
Meningococcal polysaccharide group Y antigen
Influenza virus antigen
Influenza A antigen
Influenza A virus subtype H1N1 antigen
Typhoid antigen
Vi polysaccharide typhoid antigen
Typhoid live attenuated Ty21a antigen
Varicella antigen
varicella-zoster virus antigen
Hepatitis B antigen
Hepatitis B antigen dialysis strength
Hepatitis B antigen pediatric strength
Hepatitis B antigen regular strength
* A ‘bucket’ refers to a high level representation for a group of antigens. In this case, the concept rather represents a product when it is not representing an atomic concept like a substance would.
For example: Human papillomavirus bivalent vaccine (product)
The format for the Preferred Synonym (PS) is as follows:
Antigen Name (strength)
E.g.: Pertussis antigen
E.g.: Pertussis antigen low dose
Example: Hepatitis B antigen X strength (substance)
regular strength traduit par: formulation régulière
dialysis strength traduit par: formulation pour dialyse
pediatric strength traduit par: formulation pédiatrique