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Become a member and receive career-enhancing benefits

Our top priority is providing value to members. Your Member Services team is here to ensure you maximize your ACS member benefits, participate in College activities, and engage with your ACS colleagues. It's all here.

Become a Member
Become a member and receive career-enhancing benefits

Our top priority is providing value to members. Your Member Services team is here to ensure you maximize your ACS member benefits, participate in College activities, and engage with your ACS colleagues. It's all here.

Membership Benefits
ACS
Cancer Programs

AJCC Version 9 Cancer Staging System

AJCC Moved from Editions to Versions

The American Joint Committee on Cancer (AJCC) made an important change to how it updates and releases Cancer Staging content. The AJCC shifted from a Cancer Staging Manual to a Cancer Staging System and moved away from Editions to Versions. Updated Version 9 disease sites go into effect on January 1 following their release.

AJCC Protocol for Cancer Staging Documentation, Version 9

The new AJCC Protocol Version 9 content is presented in a streamlined, easy-to-use format including synoptic staging report format, tables, explanatory notes, and illustrations. All disease sites in the 8th Edition Cancer Staging Manual remain current until replaced with Version 9.

Current Version 9 content includes the following disease sites with their effective dates.

AJCC Cancer Staging System Protocol – Version 9

Effective Date

Female Reproductive Organs

January 1, 2021

Lower Gastrointestinal Tract

Appendix

January 1, 2023

Anus

January 1, 2023

Central Nervous System

Brain & Spinal Cord

January 1, 2023

Where to Find AJCC Content

  • Individual purchases through Amazon ebook or print
  • Facility or institution through library services
  • Commercial software and applications through AJCC API or AJCC DLL

Version 9 Frequently Asked Questions