International Classification of Diseases for Oncology (ICD-O) morphology coding

Here is a post from the National Cancer Institute, SEER Training Modules, on International Classification of Diseases for Oncology (ICD-O), third edition, morphology coding. By visiting the webpage you can read about coding for morphology. https://training.seer.cancer.gov/coding/guidelines/morphology.html

Also, separately, the ICD-O by World Health Organization, has been used for nearly 35 years, principally in tumor or cancer registries, for coding the site (topography) and the histology (morphology) of the neoplasm, usually obtained from a pathology report. If you want to take a look check out:

https://apps.who.int/iris/bitstream/handle/10665/96612/9789241548496_eng.pdf

if the link doesn't work, enter ICD-O in your browser search engine.

The differences between ICD-O and ICD-10 are on page 4 of the pdf.

The snip below is on coding for Morphology.

https://training.seer.cancer.gov/coding/guidelines/morphology.html

Disclaimer: This guidance is to be used for an easy reference; the ICD-9-CM and ICD-10-CM code books and the Official Guidelines for Coding and Reporting are the authoritative references for accurate and complete coding. This blog may contain references or links to statutes, regulations, or other policy materials. It is not intended to take the place of either the written law or regulations. The information presented herein is for general informational purposes only and is accurate as of the date of publication.

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