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.

LOINCActiveBoth

LOINC Code 32115-8: Theophylline peak [Moles/Vol]

Name: LOINC Code 32115-8: Theophylline peak [Moles/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:18.899Z

32115-8 is a LOINC code used to identify Theophylline peak [Moles/Vol] 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 Theophylline^peak. It is commonly used with the system or sample type Ser/Plas.

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 Theophylline^peak. It is commonly used with the system or sample type Ser/Plas.

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: Both

What it does not mean

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

Key facts

Theophylline [Moles/volume] in Serum or Plasma --peak
Theophylline^peak
Aminophylline; Biophyllin; Continus; DRUG/TOXICOLOGY; Drugs; Lasma; Level; Nuelin; Phyllocontin; Pl; Plasma; Plsm; Point in time; Post; Postdose; Post-dose; Pro-vent; QNT; Quan; Quant; Quantitative; Random; Sabidal SR; SerP; SerPl; SerPlas; Serum; Serum or plasma; Slo-Phyllin; Somophyllin; Somophylline; SR; Substance concentration; Theo; Theo-dur; Theolair; Uniphyllin

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

Theophylline peak [Moles/Vol]Theophylline [Moles/volume] in Serum or Plasma --peakTheophylline Peak SerPl-sCncTheophylline^peakDRUG/TOXTheophylline Peak, BloodSCnc

Frequently asked questions

Code details

Code32115-8

SystemLOINC

Display nameTheophylline peak [Moles/Vol]

DescriptionTheophylline^peak

Short nameTheophylline Peak SerPl-sCnc

ComponentTheophylline^peak

PropertySCnc

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassDRUG/TOX

Example unitsumol/L

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.07

Last changed2.70

Consumer names

Theophylline Peak, Blood

Part names

Theophylline^peakSCncPtSer/PlasQnSubstance ConcentrationPoint in time (spot)Serum or Plasma

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.