LOINCActiveObservation

LOINC Code 30388-3: RBC (Pericard fld) [#/Vol]

30388-3 is a LOINC code used to identify RBC (Pericard fld) [#/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 Erythrocytes. It is commonly used with the system or sample type Pericard fld.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Erythrocytes. It is commonly used with the system or sample type Pericard 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: ACTIVE
  • Order vs observation: Observation

What it does not mean

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

Key facts

  • Erythrocytes [#/volume] in Pericardial fluid
  • Erythrocytes
  • #; ABS; absolute; absolutes; Cardio; Cardiology; Cnt; Count; Count/volume; CT; Discocytes; Erthrocyte; Erythrocyte; Heart Disease; HEMATOLOGY/CELL COUNTS; Number concentration; Number Concentration (count/vol); Pcar; Pericardial fluid; Point in time; QNT; Quan; Quant; Quantitative; Random; RBC; RBCS; Red blood cell; Red blood cells; Red blood corpuscle; Red blood corpusles; Red cell; Red cells

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

RBC (Pericard fld) [#/Vol]Erythrocytes [#/volume] in Pericardial fluidRBC # PcarErythrocytesHEM/BCRed Blood Cell (RBC) Count, Pericardial fluidNCnc

Frequently asked questions

Code details

Code30388-3
SystemLOINC
Display nameRBC (Pericard fld) [#/Vol]
DescriptionErythrocytes
Short nameRBC # Pcar
ComponentErythrocytes
PropertyNCnc
TimingPt
System (specimen)Pericard fld
ScaleQn
ClassHEM/BC
Example units10*3/uL
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.04
Last changed2.44

Consumer names

Red Blood Cell (RBC) Count, Pericardial fluid

Part names

ErythrocytesNCncPtPericard fldQnNumber ConcentrationPoint in time (spot)Pericardial 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 30388-3 | HealthAssure