LOINC Code 42031-5: Date of diagnosis of multiple tumors Cancer
42031-5 is a LOINC code used to identify Date of diagnosis of multiple tumors Cancer 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 Date of diagnosis of multiple tumors. It is commonly used with the system or sample type Cancer.XXX.
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 Date of diagnosis of multiple tumors. 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
- Date of diagnosis of multiple tumors Cancer
- Date of diagnosis of multiple tumors
- This data item is used to identify the month, day and year the patient is diagnosed with multiple or subsequent reportable tumor(s) reported as a single primary using the SEER, IARC, or Canadian Cancer Registry multiple primary rules. Multiple tumors must have the same histology as the original tumor and must be located in the same organ or primary site as the original tumor, using primary site and histology coding rules. See page 81 for date format. Record the Date of Diagnosis as the Date of Multiple Tumors when multiple reportable tumors are abstracted and reported as a single primary at the time of initial diagnosis. Record the date the first subsequent reportable tumor was diagnosed (same histology and same site as the original tumor, using the primary site and histology coding rules). The Date of Multiple Tumors must occur within one year following the initial/first diagnosis of the reported tumor. Patients with multiple tumors currently reported as a single primary for surveillance purposes may have a worse prognosis or more extensive treatment than patients with a single tumor. This data item will make it possible to identify important information about these cases for data analysis. The Date of Multiple Tumors will allow separation of cases with multiple reportable tumors present at the time of initial diagnosis from cases with subsequent reportable tumors. The date will allow tracking of the time interval between the date of original diagnosis and the first date of subsequent tumor(s) for specific primary sites and tumor histologies. .. NAACCR Data Standards and Data Dictionary Version 11
- CA; Date and time; Date Dx multiple tumors; Date of Dx; Dx; Misc; Miscellaneous; Mult; Multi; Oncology; Other; Point in time; QNT; Quan; Quant; Quantitative; Random; Spec; Time stamp; Timestamp; 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
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.