LOINC Code 39809-9: Date 1st systemic treatment 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 Date 1st systemic treatment. 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 1st systemic treatment Cancer
• Date 1st systemic treatment
• Date of initiation of systemic therapy that is part of the first course of treatment. Systemic therapy includes the administration of chemotherapy agents, hormone agents, biological response modifiers, bone marrow transplants, stem cell harvests, and surgical and/or radiation endocrine therapy. See page 81 for date format. Collecting dates for each treatment modality allows the sequencing of multiple treatments and aids in the evaluation of time intervals from diagnosis to treatment and from treatment to recurrence... NAACCR Data Standards and Data Dictionary Version 11
• CA; Date and time; First; Misc; Miscellaneous; 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); Tx; 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