LOINCActiveBoth

LOINC Code 38505-4: Thyroglobulin recovery [Mass fraction]

38505-4 is a LOINC code used to identify Thyroglobulin recovery [Mass fraction] 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 Thyroglobulin recovery. 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 Thyroglobulin recovery. 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: ACTIVE
  • Order vs observation: Both

What it does not mean

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

Key facts

  • Thyroglobulin recovery in Serum or Plasma
  • Thyroglobulin recovery
  • Chemistry; Endocrine; Endocrinology; Mass Fraction; Percent; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Tg; TgR; Thyglobulin; Thyroglbn; Thyroglob; Thyroglob Recovery; Tumor marker; UniversalLabOrders

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

Thyroglobulin recovery [Mass fraction]Thyroglobulin recovery in Serum or PlasmaThyroglob Recovery MFr SerPlThyroglobulin recoveryCHEMThyroglobulin recovery, BloodMFr

Frequently asked questions

Code details

Code38505-4
SystemLOINC
Display nameThyroglobulin recovery [Mass fraction]
DescriptionThyroglobulin recovery
Short nameThyroglob Recovery MFr SerPl
ComponentThyroglobulin recovery
PropertyMFr
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassCHEM
Example units%
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.14
Last changed2.73

Consumer names

Thyroglobulin recovery, Blood

Part names

Thyroglobulin recoveryMFrPtSer/PlasQnMass fractionPoint 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 38505-4 | HealthAssure