LOINC Code 42033-1: Number of tumors and histologies
42033-1 is a LOINC code used to identify Number of tumors and histologies in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Number of tumors & histologies. It is commonly used with the system or sample type ^Patient.
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 Number of tumors & histologies. It is commonly used with the system or sample type ^Patient.
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
- Number of tumors and histologies
- Number of tumors & histologies
- This data item will clarify the number of simultaneous tumors (lesions) and the number of histologies for a given reported tumor. At a facility, this will reflect information for an individual abstract being prepared. At a central registry, this item can be consolidated to represent the best information obtained for a reportable tumor from multiple sources. Information on the number of simultaneous tumors or lesions (per SEER multiple primary rules) would make it possible to more accurately consolidate source records and to facilitate the automation of this process. .. NAACCR Data Standards and Data Dictionary Version 11
- # tumors/hist; Cnt; Count; No; Num; Number; Oncology; Point in time; QNT; Quan; Quant; Quantitative; Random; TUMOR REGISTRY(NAACCR)
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
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.