21998-0

LOINC Code


LOINC code21998-0
name
descriptionSome computer edits identify errors. Others indicate possible errors that require manual review for resolution. To eliminate the need to review the same cases repeatedly, over-ride flags have been developed to indicate that data in a record (or records) have been reviewed and, while unusual, are correct. This over-ride is used with the following edits in the NAACCR Metafile of the EDITS software: Seq Num--Central, Primary Site, Morph (NAACCR IF22) Seq Num--Central, Primary Site, Morph (SEER IF22) Seq Num--Central, Prim Site, Morph ICDO3 (NAACCR IF22) Seq Num--Central, Prim Site, Morph ICDO3 (SEER IF22) Some edits check for code combinations that are possible, but quite rare. If the code combination generates an error message and review of the case indicates that the codes are correct for the case, then the over-ride flag is used to skip the edit in the future. See Chapter IV, Recommended Data Edits and Software Coordination of Standards. Over-ride Flag as Used in the EDITS Software Package If Sequence Number-Central indicates the person has had more than one primary, then any case with one of the following Primary Site/Histologic Type ICD-O-3 combinations requires review: C760-C768 (ill-defined sites) or C809 (unknown primary) and Histologic Type ICD-O-3 < 9590. C77_ and Histologic Type ICD-O-3 not in range 9590-9729. C420-C424 and Histologic Type ICD-O-3 not in range 9590-9989. Any site code and Histologic Type ICD-O-3 in range 9740-9758. Instructions for Coding Code 1 can be used if a second or subsequent primary reporting with an ill-defined primary site has been reviewed and is indeed an independent primary... NAACCR Data Standards and Data Dictionary Version 11
statusACTIVE

Fully-Specified Name

componentIll defined site override flag
propertyArb  =  Arbitrary
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.
systemCancer case.XXX
scaleOrd  =  Ordinal:  Ordered categorical responses, e.g., 1+, 2+, 3+; positive, negative; reactive, indeterminate, nonreactive.
method

Additional Names

short nameArbitrary; CA; Ill defined site O/R; Misc; Miscellaneous; Oncology; Ordinal; Other; Point in time; QL; Qual; Qualitative; Random; Screen; Spec; To be specified in another part of the message; TUMOR REGISTRY(NAACCR); Unspecified

Basic Attributes

classTUMRRGT
type2  Clinical
order vs. observationIll defined sit

Member of these Panels

46440-4
60500-6

History/Usage

first released
last updated2.27
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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