21891-7

LOINC Code


LOINC code21891-7
name
descriptionPart of the 10-digit EOD [779]. Detailed site-specific codes for anatomic EOD used by SEER for tumors diagnosed from 1988 forward. 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. EOD--Extension Prost Path is an additional field for prostate cancer only to reflect information from radical prostatectomy, effective with 1995 diagnoses. The field is left blank for all other primaries... NAACCR Data Standards and Data Dictionary Version 11
statusACTIVE

Fully-Specified Name

componentExtent of disease
propertyType  =  Type:  The Property Type is used for assays that identify the specific analyte in cases when the baseline presence of the analyte is known.
timePt  =  Point in time:  To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements.
systemProstate cancer.XXX
scaleNom  =  Nominal:  Nominal or categorical responses that do not have a natural ordering. (e.g., names of bacteria, reported as answers, categories of appearance that do not have a natural ordering, such as, yellow, clear, bloody.
method

Additional Names

short nameCA; Dis; Diseases; Dz; EOD; Misc; Miscellaneous; Nominal; Oncology; Other; Point in time; Prost; Prostatic; Random; Spec; To be specified in another part of the message; TUMOR REGISTRY(NAACCR); Typ; Unspecified

Basic Attributes

classTUMRRGT
type2  Clinical
order vs. observationEOD Prostate ca

Member of these Panels

46448-7
60508-9

History/Usage

first released
last updated2.29
last change typeMIN  - change to field other than name

Related Names



Copyright © 2026 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2026, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.

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