21990-7
ClinicalICD-O-1 to ICD-O-2 conversion method
Definition
Code specifying how the conversion of site and morphology codes from ICD-O-1 and the field trial editions to ICD-O-2 was accomplished. The item names include years 1973-91. However, some states may have used the codes for tumors before 1973. The code also covers morphology conversions from ICD-O-3 to ICD-O-2... NAACCR Data Standards and Data Dictionary Version 11
LOINC 6-Axis Classification
Component
ICD-O-1 to ICD-O-2 conversion method
Property
Type
Time Aspect
Pt
System
Cancer.XXX
Scale Type
Nom
Method Type
N/A
Details
Class
TUMRRGT
Order/Observation
N/A
Short Name
ICD-O-1 to ICD-O-2 conversion method
Related Names
Frequently Asked Questions
What is LOINC code 21990-7?
LOINC code 21990-7 identifies "ICD-O-1 to ICD-O-2 conversion method". Code specifying how the conversion of site and morphology codes from ICD-O-1 and the field trial editions to ICD-O-2 was accomplished. The item names include years 1973-91. However, some states may have used the codes for tumors before 1973. The code also covers morphology conversions from ICD-O-3 to ICD-O-2... NAACCR Data Standards and Data Dictionary Version 11
What does 21990-7 measure?
This code measures ICD-O-1 to ICD-O-2 conversion method 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.