LOINCActiveBoth

LOINC Code 20770-4: Coliform bacteria Viability count (Envir) [#/Vol]

20770-4 is a LOINC code used to identify Coliform bacteria Viability count (Envir) [#/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 Coliform bacteria. It is commonly used with the system or sample type Envir.

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 Coliform bacteria. It is commonly used with the system or sample type Envir.

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: Viability count

What it does not mean

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

Key facts

  • Coliform bacteria [#/volume] by Viability count
  • Coliform bacteria
  • #; ABS; absolute; absolutes; Bact; Cnt; Count; Count/volume; CT; ID; Infectious Disease; InfectiousDisease; Microbiology; Number concentration; Number Concentration (count/vol); Point in time; QNT; Quan; Quant; Quantitative; Random; Viab Cnt

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

Coliform bacteria Viability count (Envir) [#/Vol]Coliform bacteria [#/volume] by Viability countColiform # Viab CntColiform bacteriaMICROColiform bacteria, Environmental specimenNCnc

Frequently asked questions

Code details

Code20770-4
SystemLOINC
Display nameColiform bacteria Viability count (Envir) [#/Vol]
DescriptionColiform bacteria
Short nameColiform # Viab Cnt
ComponentColiform bacteria
PropertyNCnc
TimingPt
System (specimen)Envir
ScaleQn
MethodViability count
ClassMICRO
Example units/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0m
Last changed2.42

Consumer names

Coliform bacteria, Environmental specimen

Part names

Coliform bacteriaNCncPtEnvirQnViability countNumber ConcentrationPoint in time (spot)

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 20770-4 | HealthAssure