# microbiology **URL:** https://forum.loinc.org/c/legacy/laboratory-loinc/microbiology/42.md [Latest](https://forum.loinc.org/latest.md) · [Categories](https://forum.loinc.org/categories.md) · [Tags](https://forum.loinc.org/tags.md) --- ## [About the microbiology category](https://forum.loinc.org/t/about-the-microbiology-category/595)
**Author:** [@system](https://forum.loinc.org/u/system)\ **Replies:** 0
--- ## [Order LOINC with Multiple Specimen Types](https://forum.loinc.org/t/order-loinc-with-multiple-specimen-types/822)
**Author:** [@jburke](https://forum.loinc.org/u/jburke)\ **Replies:** 3\ **Last updated:** [June 3, 2022, 1:18am UTC](https://forum.loinc.org/t/order-loinc-with-multiple-specimen-types/822 "2022-06-03T01:18:15Z")
I am LOINC mapping in a system that allows multiple specimen types to be coded for the same test(result) code with specific observation LOINCs. This system does not allow for multiple LOINC codes at the Orderable level… --- ## ['Presence' versus 'Identifier' in E Coli O157:H7 NAA test](https://forum.loinc.org/t/presence-versus-identifier-in-e-coli-o157-h7-naa-test/1046)
**Author:** [@mestes7](https://forum.loinc.org/u/mestes7)\ **Replies:** 11\ **Last updated:** [April 13, 2022, 10:29am UTC](https://forum.loinc.org/t/presence-versus-identifier-in-e-coli-o157-h7-naa-test/1046 "2022-04-13T10:29:39Z")
Hello, We are doing a query to identify STEC O157:H7 cases in EHR records. \Some of the LOINC descriptions are listed as \[Presence\] and others as \[Identifier\]. … --- ## [synonyms for Mucorales by PCR](https://forum.loinc.org/t/synonyms-for-mucorales-by-pcr/1085)
**Author:** [@cmcntsh](https://forum.loinc.org/u/cmcntsh)\ **Replies:** 3\ **Last updated:** [January 25, 2021, 2:53pm UTC](https://forum.loinc.org/t/synonyms-for-mucorales-by-pcr/1085 "2021-01-25T14:53:21Z")
I’m trying to see if there are appropriate LOINC codes for a test described at https://ltd.aruplab.com/Tests/Pub/3000352 . I don’t seem to be finding anything. I was just wondering if there are other synonyms for Mucora… --- ## [SARS-CoV-2 gene specific codes, many assays look at multiple targets.](https://forum.loinc.org/t/sars-cov-2-gene-specific-codes-many-assays-look-at-multiple-targets/1067)
**Author:** [@mccashs](https://forum.loinc.org/u/mccashs)\ **Replies:** 1\ **Last updated:** [September 12, 2020, 7:46pm UTC](https://forum.loinc.org/t/sars-cov-2-gene-specific-codes-many-assays-look-at-multiple-targets/1067 "2020-09-12T19:46:48Z")
Many RNA assays for SARS-CoV-2 check for multiple gene targets and report out an interpretation. For instance there is an assay that if it finds ORF1 a/b but not the E-gene the reported interpretation is “Presumptive”. … --- ## [System type for Micro Antibody tests](https://forum.loinc.org/t/system-type-for-micro-antibody-tests/937)
**Author:** [@lactroi](https://forum.loinc.org/u/lactroi)\ **Replies:** 2\ **Last updated:** [August 13, 2020, 7:22am UTC](https://forum.loinc.org/t/system-type-for-micro-antibody-tests/937 "2020-08-13T07:22:22Z")
We have been assisting implementersin mapping to the LOINC standard and have noticed that many of the Micro antibody tests indicated the specimen (system) type as serum. Their analyzers use plasma for many of these tests… --- ## [AC anti-VHC](https://forum.loinc.org/t/ac-anti-vhc/980)
**Author:** [@emaldonado](https://forum.loinc.org/u/emaldonado)\ **Replies:** 0\ **Last updated:** [May 7, 2018, 6:57am UTC](https://forum.loinc.org/t/ac-anti-vhc/980 "2018-05-07T06:57:25Z")
In relation to the term 54914-7 (Hepatitis C virus core Ag) the system displayed is “Serum”. Would it also be applicable for plasma? Otherwise, is there any better code for quantitation of HCVAg (fmol / L) in serum/plasm… --- ## [HCV Genotype](https://forum.loinc.org/t/hcv-genotype/979)
**Author:** [@emaldonado](https://forum.loinc.org/u/emaldonado)\ **Replies:** 0\ **Last updated:** [May 7, 2018, 6:53am UTC](https://forum.loinc.org/t/hcv-genotype/979 "2018-05-07T06:53:22Z")
In relation to the term 32286-7 we have noticed in your examples of results that you specified only genotipes (i.e. 1, 2, 3, …). Would it be also the right term for reporting also sub-types (i.e. 1a, 1b, 1,c, ….)? --- ## [Doubt regards the limits of detection of viral loads](https://forum.loinc.org/t/doubt-regards-the-limits-of-detection-of-viral-loads/978)
**Author:** [@emaldonado](https://forum.loinc.org/u/emaldonado)\ **Replies:** 1\ **Last updated:** [May 7, 2018, 6:50am UTC](https://forum.loinc.org/t/doubt-regards-the-limits-of-detection-of-viral-loads/978 "2018-05-07T06:50:57Z")
Greetings, In relation to the term 10676-5 (Hepatitis C virus RNA), I can not find out the limits of detection of viral loads. Are they implicit to this term, or must they be specified explicitly? Best regards, --- ## [LOINC code for organism identified by mass spectrometry](https://forum.loinc.org/t/loinc-code-for-organism-identified-by-mass-spectrometry/847)
**Author:** [@yanagisawa](https://forum.loinc.org/u/yanagisawa)\ **Replies:** 3\ **Last updated:** [February 21, 2017, 5:16am UTC](https://forum.loinc.org/t/loinc-code-for-organism-identified-by-mass-spectrometry/847 "2017-02-21T05:16:04Z")
Dear all, Does anyone handling test of organism that is identified by mass spectrometry, such as MALDI-TOF? As my knowledge, there is no exact match of current LOINC code for this method. The most relevant LOINC… --- ## [Dengue virus](https://forum.loinc.org/t/dengue-virus/900)
**Author:** [@vchoi](https://forum.loinc.org/u/vchoi)\ **Replies:** 2\ **Last updated:** [July 28, 2016, 7:24am UTC](https://forum.loinc.org/t/dengue-virus/900 "2016-07-28T07:24:28Z")
Hi, How are "Dengue virus", "Dengue virus 1+2+3+4", and "Dengue virus 1 and 2 and 3 and 4" differentiated from each other? Can one subsume the other(s)? Why does the hierarchy list "Dengue virus 1+2+3+4" as siblings … --- ## [Antibody classes](https://forum.loinc.org/t/antibody-classes/901)
**Author:** [@vchoi](https://forum.loinc.org/u/vchoi)\ **Replies:** 0\ **Last updated:** [April 6, 2016, 2:13am UTC](https://forum.loinc.org/t/antibody-classes/901 "2016-04-06T02:13:55Z")
Hi, Does "Ab" automatically include all antibody classes (IgG, IgA, IgM, IgD, IgE)? Or can it substitute for any class? What if you want IgM+IgG but there is no LOINC code? Can you use the more generic "Ab" code? Th… --- ## [Serovar vs Serotype (Type vs Prid property)](https://forum.loinc.org/t/serovar-vs-serotype-type-vs-prid-property/897)
**Author:** [@vchoi](https://forum.loinc.org/u/vchoi)\ **Replies:** 0\ **Last updated:** [April 1, 2016, 1:34am UTC](https://forum.loinc.org/t/serovar-vs-serotype-type-vs-prid-property/897 "2016-04-01T01:34:35Z")
Hi, While looking at Salmonella sp, I came across these 2 tests: Code LongName Property 20951-0 Salmonella sp serotype \[Identifier\] in … --- ## [Zika virus - new codes and value sets](https://forum.loinc.org/t/zika-virus-new-codes-and-value-sets/889)
**Author:** [@jdeckard](https://forum.loinc.org/u/jdeckard)\ **Replies:** 0\ **Last updated:** [February 17, 2016, 2:40pm UTC](https://forum.loinc.org/t/zika-virus-new-codes-and-value-sets/889 "2016-02-17T14:40:41Z")
See the “Hot Topics” on CDC’s PHIN VADS website: https://phinvads.cdc.gov/vads/SearchHome.action The new LOINCs will also be posted soon on the LOINC prerelease page: https://loinc.org/prerelease --- ## [LOINC mapping to influenza detection with PCR](https://forum.loinc.org/t/loinc-mapping-to-influenza-detection-with-pcr/862)
**Author:** [@barryfky](https://forum.loinc.org/u/barryfky)\ **Replies:** 1\ **Last updated:** [June 4, 2015, 1:49pm UTC](https://forum.loinc.org/t/loinc-mapping-to-influenza-detection-with-pcr/862 "2015-06-04T13:49:25Z")
Hi all, There are two similar tests which require LOINC mapping They are RT-PCR for Influenzae A, H7 subtype’ and 'Influenza A virus H7 subtype PCR – screening The different is that the ‘screening’ test may perform a P… --- ## [LOINC code for detection of specific organims](https://forum.loinc.org/t/loinc-code-for-detection-of-specific-organims/861)
**Author:** [@pjahaas](https://forum.loinc.org/u/pjahaas)\ **Replies:** 1\ **Last updated:** [June 4, 2015, 1:25pm UTC](https://forum.loinc.org/t/loinc-code-for-detection-of-specific-organims/861 "2015-06-04T13:25:19Z")
I like to define LOINC codes for ordering identification of specific organims. In the LOINC database some specific organimsn are already defined like: 40684-3 (Acinetobacter sp multidrug resistant identified in Unspecifi… --- ## [Serology performed on plasma samples](https://forum.loinc.org/t/serology-performed-on-plasma-samples/815)
**Author:** [@pjahaas](https://forum.loinc.org/u/pjahaas)\ **Replies:** 3\ **Last updated:** [November 1, 2013, 12:45pm UTC](https://forum.loinc.org/t/serology-performed-on-plasma-samples/815 "2013-11-01T12:45:41Z")
In our laboratory infectious disease serology testing. ie Hepatitis antibodies, is preferentially performed in serum samples. Occasionally a serum sample is not available and the test is performed on an available plasma … --- ## [Anaerobic Culture](https://forum.loinc.org/t/anaerobic-culture/806)
**Author:** [@jburke](https://forum.loinc.org/u/jburke)\ **Replies:** 1\ **Last updated:** [October 1, 2013, 1:45pm UTC](https://forum.loinc.org/t/anaerobic-culture/806 "2013-10-01T13:45:53Z")
Hello, How would I LOINC map an anaerobic urine culture? 630-8 Bacteria identified in Urine by Culture, does not specify aerobic or anaerobic. Could this be used for both aerobic and anaerobic? I see where … --- ## [Loinc Codes Organism Class](https://forum.loinc.org/t/loinc-codes-organism-class/800)
**Author:** [@mfulham](https://forum.loinc.org/u/mfulham)\ **Replies:** 0\ **Last updated:** [July 30, 2013, 3:41pm UTC](https://forum.loinc.org/t/loinc-codes-organism-class/800 "2013-07-30T15:41:35Z")
Hi So I’m currently going through our Specimen Source/ Organism Class mapping. How are labs dealing with the different organism classes for the specimen source? (ie eye culture anaerobe/fastidious/gram neg/gram pos/… --- ## [Specific Antigen Used Generically](https://forum.loinc.org/t/specific-antigen-used-generically/778)
**Author:** [@mmarti5](https://forum.loinc.org/u/mmarti5)\ **Replies:** 0\ **Last updated:** [January 23, 2013, 7:29pm UTC](https://forum.loinc.org/t/specific-antigen-used-generically/778 "2013-01-23T19:29:15Z")
I’m starting to see a pattern in requests coming to me and would like to know the right way to respond. LOINC often has a generic code for a test that is specific to a conserved antigen or gene 23384-1 Pseudor… --- ## [Mumps soluble Ag v.s. soluble Ab](https://forum.loinc.org/t/mumps-soluble-ag-v-s-soluble-ab/774)
**Author:** [@barryfky](https://forum.loinc.org/u/barryfky)\ **Replies:** 1\ **Last updated:** [December 20, 2012, 1:42pm UTC](https://forum.loinc.org/t/mumps-soluble-ag-v-s-soluble-ab/774 "2012-12-20T13:42:51Z")
Hi all~ There are only LOINC code for mumps virus soluble antibody but nit soluble antigen. Just wanna confirm those LOINC codes like 31504-4 are suitable for the use in detecting Mumps soluble antigen. Best re… --- ## [reporting CT values in molecular tests](https://forum.loinc.org/t/reporting-ct-values-in-molecular-tests/767)
**Author:** [@pjahaas](https://forum.loinc.org/u/pjahaas)\ **Replies:** 1\ **Last updated:** [November 7, 2012, 2:44am UTC](https://forum.loinc.org/t/reporting-ct-values-in-molecular-tests/767 "2012-11-07T02:44:53Z")
We perform a molecular test to detect the presence of microorganims in a clinical sample i.e. the presence of salmonella (61370-3 Salmonella enterica DNA \[Presence\] in Unspecified specimen by Probe & target amplification… --- ## [Staph Aureus Screen](https://forum.loinc.org/t/staph-aureus-screen/761)
**Author:** [@hpike](https://forum.loinc.org/u/hpike)\ **Replies:** 2\ **Last updated:** [September 5, 2012, 12:10pm UTC](https://forum.loinc.org/t/staph-aureus-screen/761 "2012-09-05T12:10:46Z")
We have a new culture that is a “Staph aureus Screen” - is it not for MRSA. Is it appropritate to use : 20966-8 Staphylococcus sp ID’ed in Unspecified Specimen by Org specific culture? We also have a new culture that … --- ## [System not available for N. gonorrhoeae DNA Probe](https://forum.loinc.org/t/system-not-available-for-n-gonorrhoeae-dna-probe/760)
**Author:** [@hpike](https://forum.loinc.org/u/hpike)\ **Replies:** 5\ **Last updated:** [August 31, 2012, 5:19pm UTC](https://forum.loinc.org/t/system-not-available-for-n-gonorrhoeae-dna-probe/760 "2012-08-31T17:19:34Z")
I cannot seem to find a LOINC for a component of N. gonorrhoeae DNA, System of Cvx, and Method of Probe. Any options for cervix are for Chlam and Neisseria together or are for rRNA, not N. gonorrhoeae alone which is wha… --- ## [Non-interfaced Microbiology](https://forum.loinc.org/t/non-interfaced-microbiology/756)
**Author:** [@ehuck](https://forum.loinc.org/u/ehuck)\ **Replies:** 1\ **Last updated:** [June 13, 2012, 12:14pm UTC](https://forum.loinc.org/t/non-interfaced-microbiology/756 "2012-06-13T12:14:57Z")
We use CPSI without the micro part. The micro reports come from the microscan and appear as copied pages in the LIS. Since the organisms and antibiotics are not in the LIS, I don’t know how to attach the Loinc codes, a… --- ## [Sequencing Pathogens](https://forum.loinc.org/t/sequencing-pathogens/751)
**Author:** [@mmarti5](https://forum.loinc.org/u/mmarti5)\ **Replies:** 1\ **Last updated:** [March 16, 2012, 3:54pm UTC](https://forum.loinc.org/t/sequencing-pathogens/751 "2012-03-16T15:54:33Z")
I am getting more and more questions about sequencing of pathogen genomes. Most of existing LOINC content in this area is for identification of pathogens using molecular tools like PCR. But, especially in influenza, we… --- ## [Microbiology Text results and LOINC](https://forum.loinc.org/t/microbiology-text-results-and-loinc/746)
**Author:** [@jburke](https://forum.loinc.org/u/jburke)\ **Replies:** 2\ **Last updated:** [December 19, 2011, 3:42pm UTC](https://forum.loinc.org/t/microbiology-text-results-and-loinc/746 "2011-12-19T15:42:42Z")
Hello, What would be your recommendation for LOINC mapping of a Microbiology result/ovservation where all the elements are returned in a text file instead of discrete result observations as LOINC provides? This is t… --- ## [Organism Names and LOINC?](https://forum.loinc.org/t/organism-names-and-loinc/745)
**Author:** [@seveets](https://forum.loinc.org/u/seveets)\ **Replies:** 2\ **Last updated:** [November 1, 2011, 1:37pm UTC](https://forum.loinc.org/t/organism-names-and-loinc/745 "2011-11-01T13:37:24Z")
In our LIS, Meditech Magic, there is a separate dictionary for Organisms and each organism name has a spot for a LOINC code. For a Urine Culture I would use the LOINC 630-4 Bacteria identified in Urine by Culture. … --- ## [What property to use for Signal to Cutt-off ratio](https://forum.loinc.org/t/what-property-to-use-for-signal-to-cutt-off-ratio/738)
**Author:** [@pjahaas](https://forum.loinc.org/u/pjahaas)\ **Replies:** 3\ **Last updated:** [September 8, 2011, 9:27am UTC](https://forum.loinc.org/t/what-property-to-use-for-signal-to-cutt-off-ratio/738 "2011-09-08T09:27:29Z")
We use the SIemens Advia for hepatitis C IgG Ab measurements. The Advia gives a result in signal/Cutt-off ratio. However, in loinc there are only Hepatitis C IgG entries that have a property AConc. The advia does not mea… --- ## [Questions on assigning LOINC codes in microbiology](https://forum.loinc.org/t/questions-on-assigning-loinc-codes-in-microbiology/735)
**Author:** [@mjanineh](https://forum.loinc.org/u/mjanineh)\ **Replies:** 7\ **Last updated:** [August 1, 2011, 11:38pm UTC](https://forum.loinc.org/t/questions-on-assigning-loinc-codes-in-microbiology/735 "2011-08-01T23:38:46Z")
Good afternoon, I have some questions regarding the best way to approach assigning LOINC codes for Microbiology. We will be using Bedrock (Cerner Millennium). I’m wondering if anyone has had some experience they can sh… [Next page](https://forum.loinc.org/c/legacy/laboratory-loinc/microbiology/42.md?page=1)