What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveObservation

LOINC Code 32558-9: Mumps reaction wheal 1 day post 0.1 mL mumps intradermal (Skin) [Diam]

Name: LOINC Code 32558-9: Mumps reaction wheal 1 day post 0.1 mL mumps intradermal (Skin) [Diam]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:18.901Z

32558-9 is a LOINC code used to identify Mumps reaction wheal 1 day post 0.1 mL mumps intradermal (Skin) [Diam] 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 Mumps reaction wheal^1D post 0.1 mL mumps ID. It is commonly used with the system or sample type Skin.

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 Mumps reaction wheal^1D post 0.1 mL mumps ID. It is commonly used with the system or sample type Skin.

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

What it does not mean

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

Key facts

Mumps reaction wheal [Diameter] --1 day post 0.1 mL mumps intradermal
Mumps reaction wheal^1D post 0.1 mL mumps ID
1D p .1 mL Mumps; After; Dermatologic; Diameter; Epidermis; Identifier; Integument; Intradermal; Point in time; PST; QNT; Quan; Quant; Quantitative; Random; React; Rx wheal; Rxn; Skin test; SKIN TESTS; Skn

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

Mumps reaction wheal 1 day post 0.1 mL mumps intradermal (Skin) [Diam]Mumps reaction wheal [Diameter] --1 day post 0.1 mL mumps intradermalWheal 1D p .1 mL Mumps DiamMumps reaction wheal^1D post 0.1 mL mumps IDCHALSKINMumps reaction wheal 1 day after 0.1 mL Mumps Intradermal, SkinDiam

Frequently asked questions

Code details

Code32558-9

SystemLOINC

Display nameMumps reaction wheal 1 day post 0.1 mL mumps intradermal (Skin) [Diam]

DescriptionMumps reaction wheal^1D post 0.1 mL mumps ID

Short nameWheal 1D p .1 mL Mumps Diam

ComponentMumps reaction wheal^1D post 0.1 mL mumps ID

PropertyDiam

TimingPt

System (specimen)Skin

ScaleQn

ClassCHALSKIN

Example unitsmm

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.08

Last changed2.42

Consumer names

Mumps reaction wheal 1 day after 0.1 mL Mumps Intradermal, Skin

Part names

Mumps reaction wheal^1D post 0.1 mL mumps IDDiamPtSkinQnDiameterPoint in time (spot)

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.