
layout.fixed.naaccr.doc.naaccr18.histologyIcdO1.html Maven / Gradle / Ivy
Item #
Length
Source of Standard
Year Implemented
Version Implemented
Year Retired
Version Retired
Column #
1971
4
SEER
2600 - 2603
NAACCR XML: Tumor.histologyIcdO1
Description
Area for retaining the histology portion (4 digits) of the ICD-O-1 or field trial morphology codes entered before a conversion to ICD-O-2. See grouped data item Morph (73-91) ICD-O-1 [1970], in Appendix E. The item name includes years 1973-91. However, some states may have used the codes for cases before 1973.
Codes For cases diagnosed before 1992, contains the ICD-O-1 or field trial 4-digit histology code as originally coded, if available. Blank for tumors coded directly into ICD-O-2 or ICD-O-3 (i.e., 1992 and later cases).
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