21890-9
ClinicalExtension Cancer
Definition
Part of the 10-digit EOD [779]. Detailed site-specific codes for anatomic EOD used by SEER for tumors diagnosed from 1988 forward. This field is included in the COC dataset, separate from EOD. Codes were revised effective January 1, 1998, to reflect changes in the AJCC Cancer Staging Manual, Fifth Edition. Site-specific EOD codes provide extensive detail describing disease extent. The EOD codes can be grouped into different stage categories for analysis (e.g., historical summary stage categories consistent with those used in published SEER data since 1973, or more recently, AJCC stage groupings). The codes are updated as needed, but updates are usually backward compatible with old categories. See Comparative Staging Guide for Cancer.. NAACCR Data Standards and Data Dictionary Version 11
LOINC 6-Axis Classification
Component
Extension
Property
Type
Time Aspect
Pt
System
Cancer.XXX
Scale Type
Nom
Method Type
N/A
Details
Class
TUMRRGT
Order/Observation
N/A
Short Name
Extension Cancer
Related Names
Frequently Asked Questions
What is LOINC code 21890-9?
LOINC code 21890-9 identifies "Extension Cancer". Part of the 10-digit EOD [779]. Detailed site-specific codes for anatomic EOD used by SEER for tumors diagnosed from 1988 forward. This field is included in the COC dataset, separate from EOD. Codes were revised effective January 1, 1998, to reflect changes in the AJCC Cancer Staging Manual, Fifth Edition. Site-specific EOD codes provide extensive detail describing disease extent. The EOD codes can be grouped into different stage categories for analysis (e.g., historical summary stage categories consistent with those used in published SEER data since 1973, or more recently, AJCC stage groupings). The codes are updated as needed, but updates are usually backward compatible with old categories. See Comparative Staging Guide for Cancer.. NAACCR Data Standards and Data Dictionary Version 11
What does 21890-9 measure?
This code measures Extension in Cancer.XXX. It belongs to the TUMRRGT class in the LOINC classification.
What is LOINC?
LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.