Cumulative Official WHO Updates to ICD 10 - 1996 - 2001

ICD-O-3 Behavior Code NAACCR Version 11.1 field "Behavior Code ICD-O-3", Item 523, column 305. The fifth digit of the ICD O 3 morphology code (after the slash) is the Behavior Code. Use the best information from the entire pathology report to code behavior. Any amount of disease invasion makes the behavior invasive (/3). ................
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