LOINCOrder

LOINC Code 109721-1: Phosphate (Dial fld) [Measurement]

109721-1 is a LOINC code used to identify Phosphate (Dial fld) [Measurement] 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 Phosphate. It is commonly used with the system or sample type Dial fld.

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 Phosphate. It is commonly used with the system or sample type Dial fld.

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: TRIAL
  • Order vs observation: Order

What it does not mean

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

Key facts

Phosphate [Measurement] in Dialysis fluid
Phosphate
This term is intended to collate similar measurements for the LOINC SNOMED CT Collaboration in an ontological view. Additionally, it can be used to communicate a laboratory order, either alone or in combination with specimen or other information in the order. It may NOT be used to report back the measured patient value. [https//lo.inc/ce2mb6]
Diaf; Dialysate; Dialysis fluid; i Phos; Inorganic phosphate; Lab orders; Msmt; Phos; Phosphate total; Phosphorous; Phosphorus; Phosphrous; Pi; PO4

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

Phosphate (Dial fld) [Measurement]Phosphate [Measurement] in Dialysis fluidPhosphate Msmt Dial fldPhosphateLABORDERS.ONTOLOGYPhosphate, Dialysis fluid{Measurement}

Frequently asked questions

Code details

Code109721-1
SystemLOINC
Display namePhosphate (Dial fld) [Measurement]
DescriptionPhosphate
Short namePhosphate Msmt Dial fld
ComponentPhosphate
Property{Measurement}
Timing-
System (specimen)Dial fld
Scale-
ClassLABORDERS.ONTOLOGY
StatusTRIAL
Order/ObservationOrder

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.81
Last changed2.81

Consumer names

Phosphate, Dialysis fluid

Part names

Phosphate{Measurement}-Dial fldMeasurementDialysis fluid

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 109721-1 | HealthAssure