LOINCActiveObservation

LOINC Code 102785-3: Peach IgG RAST (S) [Presence]

102785-3 is a LOINC code used to identify Peach IgG RAST (S) [Presence] 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 Prunus persica Ab.IgG. It is commonly used with the system or sample type Ser.

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 Prunus persica Ab.IgG. It is commonly used with the system or sample type Ser.

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: RAST

What it does not mean

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

Key facts

  • Peach IgG Ab [Presence] in Serum by Radioallergosorbent test (RAST)
  • Prunus persica Ab.IgG
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; f095; f95; Immune globulin G; Immunoglobulin G; Peach; Point in time; PR; Radioallergosorbent test; Random; Serum; SmQn; 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

Peach IgG RAST (S) [Presence]Peach IgG Ab [Presence] in Serum by Radioallergosorbent test (RAST)Peach IgG RASTPrunus persica Ab.IgGALLERGYPeach IgG antibodyPrThr

Frequently asked questions

Code details

Code102785-3
SystemLOINC
Display namePeach IgG RAST (S) [Presence]
DescriptionPrunus persica Ab.IgG
Short namePeach IgG RAST
ComponentPrunus persica Ab.IgG
PropertyPrThr
TimingPt
System (specimen)Ser
ScaleSemiQn
MethodRAST
ClassALLERGY
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.75
Last changed2.75

Consumer names

Peach IgG antibody

Part names

Prunus persica Ab.IgGPrThrPtSerSemiQnRASTPeach (Prunus persica) IgGPresence or ThresholdPoint in time (spot)SerumRadioallergosorbent test (RAST)

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 102785-3 | HealthAssure