ICD-10-CM

The purpose of this module is to familiarize cancer registrars with the neoplasm codes from the ICD-10-CM coding scheme, Chapter 2: Neoplasms (C and D codes). Do not use this module to assign primary site and histology based on the ICD-10-CM codes assigned by the medical coder. Medical coders use different guidelines than cancer registrars.

In this module you will learn

  • The ICD-10-CM coding system
  • The applicable cancer codes (C and some D codes)

Updated: December 3, 2018


Suggested Citation

SEER Training Modules: ICD-10-CM. U.S. National Institutes of Health, National Cancer Institute. Cited 26 December 2025. Available from: https://training.seer.cancer.gov.