LOINC Code 23538-2: Tuberculosis reaction wheal 3 days post dose avian tuberculin intradermal (Skin) [Diam]

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 Tuberculosis reaction wheal^3D post dose avian tuberculin 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

• Tuberculosis reaction wheal [Diameter] --3 days post dose avian tuberculin intradermal
• Tuberculosis reaction wheal^3D post dose avian tuberculin ID
• New Zealand - Cattle
• 3D p Av PPD; After; Bird; Dermatologic; Diameter; Epidermis; Fowl; Identifier; Integument; Intradermal; p dose; Point in time; PPD; PST; Purified protein derivative; Purified protein derivative skin test; Purified protein derivative test; QNT; Quan; Quant; Quantitative; Random; React; Rx wheal; Rxn; Skin test; SKIN TESTS; Skn; TB; TB skin test; TB Wheal; TST; Tuberculosis antigen

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

Frequently asked questions