LOINCActiveBoth

LOINC Code 97999-7: HLA-DP and DQ and DR (class II) IgG donor specific Nom

97999-7 is a LOINC code used to identify HLA-DP and DQ and DR (class II) IgG donor specific Nom 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-DP & DQ & DR (class II) Ab.IgG donor specific. It is commonly used with the system or sample type Ser/Plas.

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-DP & DQ & DR (class II) Ab.IgG donor specific. It is commonly used with the system or sample type Ser/Plas.

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: Both

What it does not mean

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

Key facts

  • HLA-DP and DQ and DR (class II) IgG donor specific [Identifier] in Serum or Plasma
  • HLA-DP & DQ & DR (class II) Ab.IgG donor specific
  • 2; HLA ANTIGEN; HLA class II; HLA Class II Ab.IgG Don Spec; HLA-DP+DQ+DR; HLA-DP+DQ+DR (class II); Human Leukocyte Antigen; Identity or presence; Immune globulin G; Immunoglobulin G; Nominal; Pl; Plasma; Plsm; Point in time; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; Spec; SR

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-DP and DQ and DR (class II) IgG donor specific NomHLA-DP and DQ and DR (class II) IgG donor specific [Identifier] in Serum or PlasmaHLA Class II Ab.IgG Don Spec SerPlHLA-DP & DQ & DR (class II) Ab.IgG donor specificHLAHLA-DP & DQ & DR (class II) Ab.IgG donor specific, BloodPrid

Frequently asked questions

Code details

Code97999-7
SystemLOINC
Display nameHLA-DP and DQ and DR (class II) IgG donor specific Nom
DescriptionHLA-DP & DQ & DR (class II) Ab.IgG donor specific
Short nameHLA Class II Ab.IgG Don Spec SerPl
ComponentHLA-DP & DQ & DR (class II) Ab.IgG donor specific
PropertyPrid
TimingPt
System (specimen)Ser/Plas
ScaleNom
ClassHLA
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.70
Last changed2.70

Consumer names

HLA-DP & DQ & DR (class II) Ab.IgG donor specific, Blood

Part names

HLA-DP & DQ & DR (class II) Ab.IgG donor specificPridPtSer/PlasNomHLA-DP and DQ and DR (class II) IgG donor specificPresence or IdentityPoint in time (spot)Serum or Plasma

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.