LOINCObservation

LOINC Code 51550-2: Mouse epithelium, serum proteins + urine proteins IgE RAST class (S)

51550-2 is a LOINC code used to identify Mouse epithelium, serum proteins + urine proteins IgE RAST class (S) 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 Mouse epithelium+Serum proteins+Urine proteins Ab.IgE.RAST class. 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 Mouse epithelium+Serum proteins+Urine proteins Ab.IgE.RAST class. 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: DEPRECATED
  • Order vs observation: Observation

What it does not mean

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

Key facts

  • Deprecated Mouse epithelium, serum proteins + urine proteins IgE Ab RAST class [Presence] in Serum
  • Mouse epithelium+Serum proteins+Urine proteins Ab.IgE.RAST class
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; e71; e88; Epithelia; IgE RAST; Immune globulin E; Immunoglobulin E; Mice; Mouse Epith+Ser+Ur Prot; Murine; Mus musculus; Ordinal; Point in time; PR; Protein; QL; Qual; Qualitative; Random; Screen; Ser; Serum; 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

Mouse epithelium, serum proteins + urine proteins IgE RAST class (S)Deprecated Mouse epithelium, serum proteins + urine proteins IgE Ab RAST class [Presence] in SerumDeprecated Mouse Epith+Ser+Ur Prot IgE RAST QlMouse epithelium+Serum proteins+Urine proteins Ab.IgE.RAST classALLERGYMouse epithelium, serum proteins + urine proteins allergy testPrThr

Frequently asked questions

Code details

Code51550-2
SystemLOINC
Display nameMouse epithelium, serum proteins + urine proteins IgE RAST class (S)
DescriptionMouse epithelium+Serum proteins+Urine proteins Ab.IgE.RAST class
Short nameDeprecated Mouse Epith+Ser+Ur Prot IgE RAST Ql
ComponentMouse epithelium+Serum proteins+Urine proteins Ab.IgE.RAST class
PropertyPrThr
TimingPt
System (specimen)Ser
ScaleOrd
ClassALLERGY
StatusDEPRECATED
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.24
Last changed2.75

Consumer names

Mouse epithelium, serum proteins + urine proteins allergy test

Part names

Mouse epithelium+Serum proteins+Urine proteins Ab.IgE.RAST classPrThrPtSerOrdPresence or ThresholdPoint in time (spot)Serum

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.