LOINCActiveBoth

LOINC Code 49604-2: HCV RNA NAA+probe (BM) [Log units/Vol]

49604-2 is a LOINC code used to identify HCV RNA NAA+probe (BM) [Log units/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 Hepatitis C virus RNA. It is commonly used with the system or sample type Bone mar.

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 Hepatitis C virus RNA. It is commonly used with the system or sample type Bone mar.

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
  • Method: Probe.amp.tar

What it does not mean

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

Key facts

  • Hepatitis C virus RNA [log units/volume] (viral load) in Bone marrow by NAA with probe detection
  • Hepatitis C virus RNA
  • 3 Self-Sustaining Sequence Replication; 3SR SR; Amplif; Amplification; Amplified; BM; BON; Bone marrow; DNA NUCLEIC ACID PROBE; DNA probe; HCV; Hep; Hep C; Hepatis; Hepatit; Hepatology; ID; Infectious Disease; InfectiousDisease; LAT; LCR; Ligase chain reaction; Ligation-activated transcription; Liver; Log ACNC; Log IU; MAR; Marrow (bone); Microbiology; minimal angle of resolution; Minimum angle of resolution; NAA+probe; NAAT; NASBA; Nucleic acid sequence based analysis; PCR; Point in time; Polymerase chain reaction; Probe amp; Probe with ampification; Probe with target amplification; QBR; QNT; Quan; Quant; Quantitative; Random; Ribonucleic acid; SDA; Strand Displacement Amplification; TMA; Transcription mediated amplification; Viral load

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

HCV RNA NAA+probe (BM) [Log units/Vol]Hepatitis C virus RNA [log units/volume] (viral load) in Bone marrow by NAA with probe detectionHCV RNA Mar NAA+probe-Log IUHepatitis C virus RNAMICROHepatitis C virus (HCV), Bone marrowLaCnc

Frequently asked questions

Code details

Code49604-2
SystemLOINC
Display nameHCV RNA NAA+probe (BM) [Log units/Vol]
DescriptionHepatitis C virus RNA
Short nameHCV RNA Mar NAA+probe-Log IU
ComponentHepatitis C virus RNA
PropertyLaCnc
TimingPt
System (specimen)Bone mar
ScaleQn
MethodProbe.amp.tar
ClassMICRO
Example unitslog IU/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.22
Last changed2.70

Consumer names

Hepatitis C virus (HCV), Bone marrow

Part names

Hepatitis C virus RNALaCncPtBone marQnProbe.amp.tarLog unit concentrationPoint in time (spot)Bone marrowNucleic acid amplification with probe detection

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 49604-2 | HealthAssure