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 30210-9: Coccidioides reaction wheal 2 days post 0.1 mL coccidioidin intradermal (Skin) [Diam]

Name: LOINC Code 30210-9: Coccidioides reaction wheal 2 days post 0.1 mL coccidioidin intradermal (Skin) [Diam]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:16.074Z

30210-9 is a LOINC code used to identify Coccidioides reaction wheal 2 days post 0.1 mL coccidioidin 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 Coccidioides reaction wheal^2D post 0.1 mL coccidioidin 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 Coccidioides reaction wheal^2D post 0.1 mL coccidioidin 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

Coccidioides reaction wheal [Diameter] --2 days post 0.1 mL coccidioidin intradermal
Coccidioides reaction wheal^2D post 0.1 mL coccidioidin ID
2D p .1mL CDN; After; CDN; Coccidioides wheal; Dermatologic; Diameter; Epidermis; Identifier; Integument; Intradermal; Point in time; PST; QNT; Quan; Quant; Quantitative; Random; React; Rx wheal; Rxn; San Joaquin Valley fever; Skin test; SKIN TESTS; Skn; Valley fever

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

Coccidioides reaction wheal 2 days post 0.1 mL coccidioidin intradermal (Skin) [Diam]Coccidioides reaction wheal [Diameter] --2 days post 0.1 mL coccidioidin intradermalCoccidioides wheal 2D p .1mL CDN DiamCoccidioides reaction wheal^2D post 0.1 mL coccidioidin IDCHALSKINCoccidioides reaction wheal 2 days after 0.1 mL Coccidioidin Intradermal, SkinDiam

Frequently asked questions

Code details

Code30210-9

SystemLOINC

Display nameCoccidioides reaction wheal 2 days post 0.1 mL coccidioidin intradermal (Skin) [Diam]

DescriptionCoccidioides reaction wheal^2D post 0.1 mL coccidioidin ID

Short nameCoccidioides wheal 2D p .1mL CDN Diam

ComponentCoccidioides reaction wheal^2D post 0.1 mL coccidioidin ID

PropertyDiam

TimingPt

System (specimen)Skin

ScaleQn

ClassCHALSKIN

Example unitsmm

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.04

Last changed2.30

Consumer names

Coccidioides reaction wheal 2 days after 0.1 mL Coccidioidin Intradermal, Skin

Part names

Coccidioides reaction wheal^2D post 0.1 mL coccidioidin 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.