LOINCActiveObservation

LOINC Code 79557-5: Fluid output musculoskeletal drain [Volume] Measured

79557-5 is a LOINC code used to identify Fluid output musculoskeletal drain [Volume] Measured 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 Fluid output.musculoskeletal drain. It is commonly used with the system or sample type Musculoskeletal system.

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 Fluid output.musculoskeletal drain. It is commonly used with the system or sample type Musculoskeletal system.

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
  • Method: Measured

What it does not mean

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

Key facts

  • Fluid output musculoskeletal drain [Volume] Measured
  • Fluid output.musculoskeletal drain
  • Fld; Fluid output musculoskel drain; IO_OUTPUT; IO_OUTPUT.MOLEC; Point in time; QNT; Quan; Quant; Quantitative; Random; Volume

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

Fluid output musculoskeletal drain [Volume] MeasuredFluid output musculoskel drain Vol MeasFluid output.musculoskeletal drainIO_OUT.MOLECVolPtMusculoskeletal system

Frequently asked questions

Code details

Code79557-5
SystemLOINC
Display nameFluid output musculoskeletal drain [Volume] Measured
DescriptionFluid output.musculoskeletal drain
Short nameFluid output musculoskel drain Vol Meas
ComponentFluid output.musculoskeletal drain
PropertyVol
TimingPt
System (specimen)Musculoskeletal system
ScaleQn
MethodMeasured
ClassIO_OUT.MOLEC
Example unitsmL
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.54
Last changed2.54

Part names

Fluid output.musculoskeletal drainVolPtMusculoskeletal systemQnMeasuredFluid output musculoskeletal drainVolumePoint 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 79557-5 | HealthAssure