1

Prerelease Content Management Activities:

1. Inactivate the root concept synonym referencing previous release, and add synonym to reference current release.

2. Update copyright date on synonym (January releases only)

3. Generate + Validate SEP Refsets

4. Generate + Validate Lateralizable Refset

1. SNOMED Clinical Terms version: 20251001 [R] (October 2025 Release)
   5482873019
   SNOMED International Authoring Platform
   
   

2. Copyright date on synonym - not required for October release.

3. SEP update report - https://docs.google.com/spreadsheets/d/1Rrkev6oMwfzpJZZVaqPwhbZ7h1FEAVMeSeWQjYjd11I/edit?usp=sharing

4. Lateralizable update report - https://docs.google.com/spreadsheets/d/1Rrkev6oMwfzpJZZVaqPwhbZ7h1FEAVMeSeWQjYjd11I/edit?usp=sharing

2

Known issues

SP ref set missing members, needs change to rule https://projects.jira.snomed.org/browse/INFRA-15125 

3.

New validation/traceability 

None.

4.

MRCM changes

No new changes for October 2025 release

New and changed MRCM report https://docs.google.com/spreadsheets/d/1T46SHKAM812V-Mk7rLq8YS5bEHj1I5hWHq0JMY0AH6w/edit?usp=sharing

5.

Content Validation Reports

1. Instead of usual manual Content validation, we now just need confirmation that all Projects had automated validation run against them, and were clean before promotion.

2. New Issues identified by the community from the previous Monthly Release.

   1. Decision on whether to fix the issues:

      1. VERY QUICKLY in time for this upcoming release?

      2. In good time for the next monthly release?

• Ref set descriptor changes - none found in descriptions report https://docs.google.com/spreadsheets/d/18EfQeHgR8cMlwhIt9OW-nwy-DBs4be8vO2USwdfJBpc/edit?usp=sharing

• New permanent exceptions - 

• All permanent exceptions  -  

• New temporary exceptions - NONE

• All temporary exceptions - NONE

• New annotations -

• Reactivated Concepts - 

6.

Mapping schedule

September 2025 Release (figures as of 7 August)

• ICD-10

  • New concepts – 816 + some from Friday 8th

  • Reactivated concepts –  64347002  Vertebral artery compression syndrome (disorder) inactive since 2004

  • Published concepts QA'd in total – 2500 ish

• ICD-O

  • new activity in the ICD-O map this month – 0

  • actual changes to the map - 0

October 2025 Release

• ICD-10

  • New concepts – 378 (+ a few)

  • Reactivated concepts – 

  • Published concepts QA'd in total –

  • actual changes to the map - 820 added/updated + 403 inactivated

• ICD-O

  • new activity in the ICD-O map this month – 1 or 2

  • actual changes to the map - 2

7.

Brief run through of the known issues already identified by the content team during the QA batch process, to ensure that technical team are aware of them, and can either resolve them in time for the release, or confirm as known issues.

Deleted from main
59971000087107 |Traumatic amputation of middle phalanx of right little finger (disorder)|
59981000087109 |Traumatic amputation of middle phalanx of right middle finger (disorder)|
59931000087105 |Traumatic amputation of middle phalanx of left little finger (disorder)|
59941000087104 |Traumatic amputation of middle phalanx of left middle finger (disorder)|
59961000087103 |Traumatic amputation of middle phalanx of right index finger (disorder)|
59991000087106 |Traumatic amputation of middle phalanx of right ring finger (disorder)|
59921000087108 |Traumatic amputation of middle phalanx of left index finger (disorder)|
59951000087101 |Traumatic amputation of middle phalanx of left ring finger (disorder)|
1373441000 |Traumatic amputation of middle phalanx of little finger (disorder)|
1373438009 |Traumatic amputation of middle phalanx of middle finger (disorder)|

1373435007 |Traumatic amputation of middle phalanx of index finger (disorder)|
1373439001 |Traumatic amputation of middle phalanx of ring finger (disorder)|
1373456009 |Traumatic amputation of middle phalanx of finger (disorder)|

8.

DevOps resource confirmed

Chris

9.

Versioning and Change Freeze

Release schedule

October 2025 International Edition Release Schedule - Production Monthly Release - INTERNAL

10.

Stats Report

Summary Component Stats Report

https://docs.google.com/spreadsheets/d/1pq40K4cvGwSMIE0hxvbqgp2t-ozB-wZN-jWke_W1O60/edit?usp=sharing

11.

Risks

Atlassian tasks will change due to removal of workflow:

• Devops to review the process with Maria to confirm what the new process should be, in order to prevent delays

• Also need to confirm which stakeholder should be responsible for each task

• UAT required for critical tasks such as locking the branches, etc

Time taken for overnight mapping server jobs:

• September 2025 - Small increase in time taken on 8th August, but ony6 by 15mins so we'll just keep an eye on it to see if keeps going up or levels off....

• August 2025 - small improvements from last time, so will keep an eye on this run and see if we need to make any more refinements

• July 2025 - RICK STILL HAVING TO MANUALLY BOUNCE MYSQL DUE TO THE SWAP SPACE STILL FILLING UP DURING THE OVERNIGHT JOBS...

• Chris is going to increase the SWAP space in the meantime, and open a ticket to investigate root cause in the long term...  Some changes made in May 2025...

• 5th June 2025 - SWAP size still creeping up, so we'll check it again this cycle and see if any other action required...

• 6th June 2025 - System came back online around 8:30am, so job seems to be back to running at roughly the normal time, so we will just continue to keep an eye on it for now...

12.

AOB

Release notes

SNOMED CT October 2025 International Edition - SNOMED International Release notes (CLOUD EDITOR)