LOINCActiveObservation

LOINC Code 53733-2: Color (Spun body fld)

53733-2 is a LOINC code used to identify Color (Spun body fld) 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 Observation. It is commonly used with the system or sample type Body fld.spun.

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 Observation. It is commonly used with the system or sample type Body fld.spun.

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

  • Color of Spun Body fluid
  • Observation
  • B/F; BF; bod; Bodies; Body fluid; Body fluid, unsp; Fl; Fld; FLU; Fluid; Nominal; Point in time; Random; SPEC; spun Fld; Supernat; Supernate

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

Color (Spun body fld)Color of Spun Body fluidColor spun FldObservationSPECColor, Spun Body FldColor

Frequently asked questions

Code details

Code53733-2
SystemLOINC
Display nameColor (Spun body fld)
DescriptionObservation
Short nameColor spun Fld
ComponentObservation
PropertyColor
TimingPt
System (specimen)Body fld.spun
ScaleNom
ClassSPEC
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.26
Last changed2.79

Consumer names

Color, Spun Body Fld

Part names

ObservationColorPtBody fld.spunNomPoint in time (spot)Spun Body 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 53733-2 | HealthAssure