Data element name

Sub data element name


Code System Owner

NameAmerican Joint Committee on Cancer
Email address
Phone number

(312) 202-5205


633 N. Saint Clair St.
Chicago, IL 60611-3211

Code System Maintainer (Steward)Name
Email address
Phone number
Code System PublisherName
Email address
Phone number
Code System NamesFormal name of the code systemTNM Staging System
Short name of the code systemTNM
Code System Technical IdentifiersHTA-endorsed URI
HTA-endorsed OID
Other URIs
Other OIDs
Code System InformationLink
Notes"The TNM Staging System was developed and is maintained by the AJCC and the Union for International Cancer Control (UICC). It is the most commonly used staging system by medical professionals around the world. The TNM classification system was developed as a tool for doctors to stage different types of cancer based on certain, standardized criteria.

The TNM Staging System is based on the extent of the tumor (T), the extent of spread to the lymph nodes (N), and the presence of metastasis (M)."

HTA Note: Most content of TNM (V6) is in the SNOMED international release but not content from the most recent (V9).  In Europe many countries use TNM codes, taken from the book and referenced using an OID

Arrangement or agreements with HL7 for use of content
Version management
Published with an effective year. For Publishing history, see here
Code System Copyright, Intellectual Property and LicensingCopyright Statement
Copyright Information"The AJCC may grant permission for use of copyrighted material from the AJCC Cancer Staging Manual to outside individuals and organizations at its own discretion. No changes to, additions to, or deletions from the copied or reused material should be made without prior written approval of the AJCC. Permission applies only to the material and use specified in correspondence. New requests should be made for subsequent use or for other uses of material."
Intellectual Property Information
Licensing Information

​"To license AJCC content for commercial use in electronic health record (EHR) systems or other software and applications, please email for more information on licensing our API."

"To request permission to photocopy, duplicate, republish, or otherwise reuse AJCC material in journals, presentations or course material, follow the instructions below.

For Sixth, Seventh, Eighth Editions please contact

For Fifth Edition please contact the publisher at

Please note that some items in the manual are reproduced with permission from other rights holders. If you wish to reproduce any of those items, you must request permission from the original rights holders. This is often possible through"

HTA endorsement status (Draft, In review, Endorsed for use, Pending re-endorsement, Retired) ValueEndorsed for Use
Assignment date20210113
HTA review statusLast review date20210113
Next review date20220113
Information current as at (date)
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  1. i think the uri: shouldn't include the trailing slash. Also this is potentially duplicating:

    Should the planned canonical uri be used for TNM only? Or also for stage groups? TNM from AJCC an UICC are almost identical, so i'm assuming the canonical version element of this CodeSystem would include smth. like: "8thUICC" or "7thAJCC"?

    In general i think 2 CodeSystem(identifiers) would be a good idea: one for TNM, one for stage(groups).

    1. The other HTA page is now retired as it was in the legacy format and should have been removed when this page was created. Noted on the trailing slash, correction has been made. I've added this to the agenda for today's HTA meeting. As written, the URI is only to be used for the AJCC TNM Staging System codesystem. The canonical URI does not include version information (.e.g, 8th UICC, 7th AJCC").  If you have a request to represent an additional code system (UICC?), please enter in an HTA Jira request so we can track the request.