LOINC

LOINC Code 13537-6: Protein (P) [Mass/Vol]

13537-6 is a LOINC code used to identify Protein (P) [Mass/Vol] 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. It is commonly used with the system or sample type 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 Protein. It is commonly used with the system or sample type 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

What it does not mean

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

Key facts

  • Deprecated Protein [Mass/volume] in Plasma
  • Protein
  • Chemistry; Level; Mass concentration; Pl; Plasma; Plsm; Point in time; PR; Prot; QNT; Quan; Quant; Quantitative; Random

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 (P) [Mass/Vol]Deprecated Protein [Mass/volume] in PlasmaDeprecated Prot Plas-mCncProteinCHEMProtein, BloodMCnc

Frequently asked questions

Code details

Code13537-6
SystemLOINC
Display nameProtein (P) [Mass/Vol]
DescriptionProtein
Short nameDeprecated Prot Plas-mCnc
ComponentProtein
PropertyMCnc
TimingPt
System (specimen)Plas
ScaleQn
ClassCHEM
Example unitsg/L
StatusDEPRECATED

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0k
Last changed2.66

Consumer names

Protein, Blood

Part names

ProteinMCncPtPlasQnMass ConcentrationPoint in time (spot)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 13537-6 | HealthAssure