Share this page:

New International release of SNOMED CT available

SNOMED International Logo

The January 2022 release of the Systematized NOmenclature of MEDicine -- Clinical Terms (SNOMED CT) is now available for review and implementation via the Terminology Gateway.

Content highlights for the January 31, 2022 release of SNOMED CT by category include:

  • Removal of capitalization of the term “Severe” in COVID-19 concepts unless the term is at the beginning of the description. Coronavirus pandemic support and guidance is available via the SNOMED International COVID-19 Related Content space.
  • Continued work on the anatomy model and addition of new content including upper respiratory tract concepts.
  • Addition of a new Pressure injury (disorder) hierarchy in alignment with NPIAP terminology.
  • Inactivation and replacement of neoplastic morphology concepts based on ICD-O-3 “NOS” or “no ICD-O subtype” concepts.
  • Remodeling of “osteotomy” procedure concepts to reflect that osteotomy is an incision, excision or division of bone.
  • Quality improvement: 8368 concepts’ stated relationships and 15487 inferred relationships improved as the result of the Quality Initiative Project.
  • Inactivation of outdated “mental handicap” content.
  • 18 new concepts added in support of the Social Determinants of Health
  • Remodeling of Administration of prophylactic drug or medicament (procedure) and Hormone (substance) concepts.
  • Donor after circulatory death (person) and Donor after neurological death (person) have been added as subtypes Cadaver donor (person).
  • New concepts and modifications related to Orphanet, ICD-11, nutritional content, the Global Medical Device Nomenclature Agency, and cancer synoptic reporting.
  • SNOMED International will no longer be providing a Delta file in the release package. A Delta Generation service will be provided to implementers who require it. Trial it here and send us any feedback:
  • Release notes are provided separately from the RF2 file package and the RF2 files are provided as a single .zip file in alignment with SNOMED International RF2 file specification.
  • There is no longer any need to separate the Map files from the International Edition. ICD-0/ICD-10 Maps will continue to be published in each Monthly International Edition release package.

*Note: Please refer to the Release Notes for further details.


Canadian COVID-19 related content visit the Infoway’s Standards Resources for COVID-19 page.

Refer to SNOMED CT January 2022 International Release Notes for a detailed list of changes in this release.

Register to request an InfoCentral account and accept the appropriate license agreements.

Make Requests for Change (RFCs) using Infoway’s request for change management system, InfoRMS, once you have logged into your Infoway account.

The SNOMED CT Editorial Guide can be accessed here.

Contact  This email address is being protected from spambots. You need JavaScript enabled to view it. with any questions.

InfoCentral logo

Improving the quality of patient care through the effective sharing of clinical information among health care organizations, clinicians and their patients.