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LOINC Code 49292-6: Porphyrin fractions Nar (24H U) [Interp]

49292-6 is a LOINC code used to identify Porphyrin fractions Nar (24H U) [Interp] 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 Porphyrin fractions. It is commonly used with the system or sample type Urine.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Porphyrin fractions. It is commonly used with the system or sample type Urine.

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

  • Porphyrin fractions [Interpretation] in 24 hour Urine Narrative
  • Porphyrin fractions
  • 1 day; 24 hours; 24HR; Chemistry; Frac; Fract; Fraction; Fractionated; Fractionation; Hematology; Heme; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; Narrative; Report; UA; UR; Urn

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

Porphyrin fractions Nar (24H U) [Interp]Porphyrin fractions [Interpretation] in 24 hour Urine NarrativePorphyrin Fract 24h Ur-ImpPorphyrin fractionsCHEMInterpretation of Porphyrin fractions test result, UrineImp

Frequently asked questions

Code details

Code49292-6
SystemLOINC
Display namePorphyrin fractions Nar (24H U) [Interp]
DescriptionPorphyrin fractions
Short namePorphyrin Fract 24h Ur-Imp
ComponentPorphyrin fractions
PropertyImp
Timing24H
System (specimen)Urine
ScaleNar
ClassCHEM
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

Interpretation of Porphyrin fractions test result, Urine

Part names

Porphyrin fractionsImp24HUrineNarImpression/interpretation of study24 hours

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.