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LOINC Code 96619-2: HLA-B unresolved alleles High resolution Nom (Bld/Tiss donor)

96619-2 is a LOINC code used to identify HLA-B unresolved alleles High resolution Nom (Bld/Tiss donor) 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 HLA-B unresolved alleles. It is commonly used with the system or sample type Bld/Tiss^Donor.

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 HLA-B unresolved alleles. It is commonly used with the system or sample type Bld/Tiss^Donor.

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
  • Order vs observation: Observation
  • Method: High resolution

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

HLA-B unresolved alleles [Type] in Donor by High resolution
HLA-B unresolved alleles
HLA unresolved alleles are alleles that have ambiguous typing assignments; it's a way of listing which allele assignments are uncertain relevant to the level of resolution. It has been recommended that reports include all uncertainty in the HLA typing assignment relevant to the level of resolution as stated. As such, this term is intended to report the genotypes and/or alleles that have not been excluded and therefore, should be listed in the report [PMID22001389]. Due to the variability in reporting and updates, example answer lists are not provided, however, the following resource can provide examples of expected answers- https://www.ebi.ac.uk/ipd/imgt/hla/ambig.html.
Blood; Donr; Genetics; Heredity; Heritable; HLA ANTIGEN; HLA-B Unreslvd Alleles; Human Leukocyte Antigen; Inherited; Nominal; Point in time; Random; Tissue; Tissue, unspecified; Typ; WB; Whole blood; Whole blood or Tissue

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

HLA-B unresolved alleles High resolution Nom (Bld/Tiss donor)HLA-B unresolved alleles [Type] in Donor by High resolutionHLA-B Unreslvd Alleles Donr High ResHLA-B unresolved allelesHLAHLA-B unresolved alleles, Donor Blood or tissue specimenType

Frequently asked questions

Code details

Code96619-2
SystemLOINC
Display nameHLA-B unresolved alleles High resolution Nom (Bld/Tiss donor)
DescriptionHLA-B unresolved alleles
Short nameHLA-B Unreslvd Alleles Donr High Res
ComponentHLA-B unresolved alleles
PropertyType
TimingPt
System (specimen)Bld/Tiss^Donor
ScaleNom
MethodHigh resolution
ClassHLA
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.69
Last changed2.69

Consumer names

HLA-B unresolved alleles, Donor Blood or tissue specimen

Part names

HLA-B unresolved allelesTypePtBld/Tiss^DonorNomHigh resolutionPoint in time (spot)Blood or Tissue^Donor

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.