LOINCActive

LOINC Code 59509-0: Date case completed.COC Cancer case

59509-0 is a LOINC code used to identify Date case completed.COC Cancer case 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 case completed.COC. It is commonly used with the system or sample type Cancer case.XXX.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

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 case completed.COC. It is commonly used with the system or sample type Cancer case.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 case completed.COC Cancer case
  • Date case completed.COC
  • Identifies the date that specified items are completed, based on the Class of Case, where those items pass the relevant edits. Follow-up information, including delayed treatment received elsewhere, may be coded after the Date Case Completed-CoC. See the current <i>FORDS</i> for details. This item should be autocoded by the registry software; specifications may be obtained from NCDB. The CoC specifications will not necessarily be the same as those used for Date Case Completed [2090]. See page 95 for date format... NAACCR Data Standards and Data Dictionary Version 12
  • CA; Commission on Cancer; Misc; Miscellaneous; Oncology; Other; Point in time; QNT; Quan; Quant; Quantitative; Random; Spec; 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

Date case completed.COC Cancer caseDate case completed.COCTUMRRGTDatePtCancer case.XXXQn

Frequently asked questions

Code details

Code59509-0
SystemLOINC
Display nameDate case completed.COC Cancer case
DescriptionDate case completed.COC
Short nameDate case completed.COC Cancer case
ComponentDate case completed.COC
PropertyDate
TimingPt
System (specimen)Cancer case.XXX
ScaleQn
ClassTUMRRGT
Example unitsMMDDYY
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.34
Last changed2.50

Part names

Date case completed.COCDatePtCancer case.XXXQnPoint in time (spot)Cancer case XXX

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.

LOINC Code 59509-0 | HealthAssure