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.

LOINCBoth

LOINC Code 33061-3: Homocystine 6 Hr post dose methionine - post CFst [Molar conc diff]

Name: LOINC Code 33061-3: Homocystine 6 Hr post dose methionine - post CFst [Molar conc diff]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:20.066Z

33061-3 is a LOINC code used to identify Homocystine 6 Hr post dose methionine - post CFst [Molar conc diff] 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 Homocystine^6H post dose methionine - post CFst. 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 Homocystine^6H post dose methionine - post CFst. 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: DEPRECATED
Order vs observation: Both

What it does not mean

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

Key facts

Deprecated Homocystine [Molar concentration difference] in Serum or Plasma --6 hours post dose methionine - post CFst
Homocystine^6H post dose methionine - post CFst
The result is the difference between the post challenge value and the fasting value
(Hcys)2; >6h; 6h p Met; 6h p Met-CFst; After; Calorie Fast; CHEMISTRY.CHALLENGE TESTING; Fast; Fasting; Homocyst(e)ine; Homocystin; Met; Methionine load test; p dose; p fast; PC; Pl; Plasma; Plsm; Point in time; PST; QNT; Quan; Quant; Quantitative; Random; SCDiff; SerP; SerPl; SerPlas; Serum; Serum or plasma; 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

Homocystine 6 Hr post dose methionine - post CFst [Molar conc diff]Deprecated Homocystine [Molar concentration difference] in Serum or Plasma --6 hours post dose methionine - post CFstDeprecated (Hcys)2 6h p Met-(Hcys)2 - CFHomocystine^6H post dose methionine - post CFstCHALHomocystine 6 hr after Methionine - after Fast, BloodSCncDiff

Frequently asked questions

Code details

Code33061-3

SystemLOINC

Display nameHomocystine 6 Hr post dose methionine - post CFst [Molar conc diff]

DescriptionHomocystine^6H post dose methionine - post CFst

Short nameDeprecated (Hcys)2 6h p Met-(Hcys)2 - CF

ComponentHomocystine^6H post dose methionine - post CFst

PropertySCncDiff

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassCHAL

Example unitsumol/L

StatusDEPRECATED

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.09

Last changed2.70

Consumer names

Homocystine 6 hr after Methionine - after Fast, Blood

Part names

Homocystine^6H post dose methionine - post CFstSCncDiffPtSer/PlasQnSubstance concentration differencePoint 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.