LOINCObservation

LOINC Code 2505-6: Iron/TIBC [Mass ratio]

2505-6 is a LOINC code used to identify Iron/TIBC [Mass ratio] 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 Iron/Iron binding capacity.total. 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 Iron/Iron binding capacity.total. 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: DISCOURAGED
  • Order vs observation: Observation

What it does not mean

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

Key facts

  • Iron/Iron binding capacity.total [Mass Ratio] in Serum or Plasma
  • Iron/Iron binding capacity.total
  • Bind; Chemistry; dTIBC; Fe; IBC; Mass concentration ratio; Mass ratio; MCRto; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; TC; TIBC; Tot; Total iron binding; Totl

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

Iron/TIBC [Mass ratio]Iron/Iron binding capacity.total [Mass Ratio] in Serum or PlasmaIron/TIBC SerPlIron/Iron binding capacity.totalCHEMIron/Iron Binding Capacity.total, BloodMRto

Frequently asked questions

Code details

Code2505-6
SystemLOINC
Display nameIron/TIBC [Mass ratio]
DescriptionIron/Iron binding capacity.total
Short nameIron/TIBC SerPl
ComponentIron/Iron binding capacity.total
PropertyMRto
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassCHEM
Example unitsratio
StatusDISCOURAGED
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.73

Consumer names

Iron/Iron Binding Capacity.total, Blood

Part names

Iron/Iron binding capacity.totalMRtoPtSer/PlasQnMass RatioPoint 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.

LOINC Code 2505-6 | HealthAssure