LOINC Code 42129-7: Site coding system.current Cancer site

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 Site coding system.current. It is commonly used with the system or sample type Cancer.XXX.anatomic site.

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

• Site coding system.current Cancer site
• Site coding system.current
• Code that best describes how the primary site currently is coded. If converted, this field shows the system to which it is converted... NAACCR Data Standards and Data Dictionary Version 11
• CA; Cancer site; Coding sys.current; 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