LOINC Code 21832-1: Coding system 1970/80/90 Census tract at cancer diagnosis

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Coding system 1970&80&90. It is commonly used with the system or sample type Census tract at cancer XXX Dx.

When is it used?

• Used in lab systems, EHRs, and clinical data exchange.
• May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
• Status: ACTIVE

What it does not mean

• The code identifies the observation or test, not the actual result.

Key facts

• Coding system 1970/80/90 Census tract at cancer diagnosis
• Coding system 1970&80&90
• Identified the set of Census Bureau census tract definitions (boundaries) that were used to code the census tract in Census Tract 1970/80/90 [110] for a specific record. Allows for changes in census tracts over time. The census tract definition used to code the case must be recorded so that data are correctly grouped and analyzed. If the coding system were not recorded, the census codes would have to be converted or recoded every time the census tracts were changed... NAACCR Data Standards and Data Dictionary Version 11
• CA; Coding sys 1970/80/90; Diagnosis; Misc; Miscellaneous; Nominal; Oncology; Other; Point in time; Random; Spec; To be specified in another part of the message; TUMOR REGISTRY(NAACCR); Typ; Unspecified

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Frequently asked questions