LOINC Code 42035-6: Casefinding source Cancer

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 Casefinding source. It is commonly used with the system or sample type Cancer.XXX.

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

• Casefinding source Cancer
• Casefinding source
• This variable codes the earliest source of identifying information. For cases identified by a source other than reporting facilities (such as through death clearance or as a result of an audit), this variable codes the type of source through which the tumor was first identified. This data item cannot be used by itself as a data quality indicator. The timing of the casefinding processes (e.g., death linkage) varies from registry to registry, and the coded value of this variable is a function of that timing. This data item will help reporting facilities as well as regional and central registries in prioritizing their casefinding activities. It will identify reportable tumors that were first found through death clearance or sources other than traditional reporting facilities. It provides more detail than "Type of Reporting Source." Coding Instructions This variable is intended to code the source that first identified the tumor. Determine where the case was first identified and enter the appropriate code. At the regional or central level, if a hospital and a non-hospital source identified the case independently of each other, enter the code for the non-hospital source (i.e., codes 30-95 have priority over codes 10-29). If the case was first identified at a reporting facility (codes 10-29), code the earliest source (based on patient or specimen contact at the facility) of identifying information. If a death certificate, independent pathology laboratory report, consultation-only report from a hospital, or other report was used to identify a case that was then abstracted from a different source, enter the code for the source that first identified the case, not the source from which it was subsequently abstracted. If a regional or central registry identifies a case and asks a reporting facility to abstract it, enter the code that corresponds to the initial source, not the code that corresponds to the eventual reporting facility. .. NAACCR Data Standards and Data Dictionary Version 11
• CA; Identity or presence; Misc; Miscellaneous; Nominal; Oncology; Other; Point in time; Random; Spec; Srce; To be specified in another part of the message; TUMOR REGISTRY(NAACCR); 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