LOINCActiveObservation

LOINC Code 49048-2: Protein feed time [Date/time]

49048-2 is a LOINC code used to identify Protein feed time [Date/time] 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 Protein feed time. It is commonly used with the system or sample type ^Patient.

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 Protein feed time. It is commonly used with the system or sample type ^Patient.

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

  • Protein feed time
  • Documents time of protein feeding for the Newborn screen (NBS) assays
  • Chemistry; Date and time; Point in time; PR; Prot; QNT; Quan; Quant; Quantitative; Random; Time stamp; Timestamp

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

Protein feed time [Date/time]Protein feed timeProtein feed time PatientCHEMTmStpPt^Patient

Frequently asked questions

Code details

Code49048-2
SystemLOINC
Display nameProtein feed time [Date/time]
DescriptionProtein feed time
Short nameProtein feed time Patient
ComponentProtein feed time
PropertyTmStp
TimingPt
System (specimen)^Patient
ScaleQn
ClassCHEM
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.21
Last changed2.73

Consumer names

Protein feed time

Part names

Protein feed timeTmStpPt^PatientQnTime Stamp (Date and Time)Point 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.

LOINC Code 49048-2 | HealthAssure