LOINCActiveObservation

LOINC Code 83164-4: Additional feet past last 10 foot mark [NIH Toolbox] --2M post trial start

83164-4 is a LOINC code used to identify Additional feet past last 10 foot mark [NIH Toolbox] --2M post trial start 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 Additional [ft_i] past last 10 [ft_i] mark^2M post trial start. It is commonly used with the system or sample type ^Patient.

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 Additional [ft_i] past last 10 [ft_i] mark^2M post trial start. It is commonly used with the system or sample type ^Patient.

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: NIH Toolbox

What it does not mean

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

Key facts

Additional feet past last 10 foot mark [NIH Toolbox] --2M post trial start
Additional [ft_i] past last 10 [ft_i] mark^2M post trial start
Measure the distance from the last 10ft interval marker passed to where the participant stopped and record the number of complete feet. Use [LOINC83165-1] to record any remaining inches.
Add; After; Ft past last mark; Last; Length; Past; Point in time; PST; QNT; Quan; Quant; Quantitative; Random; Started

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

Additional feet past last 10 foot mark [NIH Toolbox] --2M post trial startFt past last mark 2M post NIHAdditional [ft_i] past last 10 [ft_i] mark^2M post trial startNIH.MOTORLenPt^Patient

Frequently asked questions

Code details

Code83164-4
SystemLOINC
Display nameAdditional feet past last 10 foot mark [NIH Toolbox] --2M post trial start
DescriptionAdditional [ft_i] past last 10 [ft_i] mark^2M post trial start
Short nameFt past last mark 2M post NIH
ComponentAdditional [ft_i] past last 10 [ft_i] mark^2M post trial start
PropertyLen
TimingPt
System (specimen)^Patient
ScaleQn
MethodNIH Toolbox
ClassNIH.MOTOR
Example unitsft
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.58
Last changed2.59

Part names

Additional [ft_i] past last 10 [ft_i] mark^2M post trial startLenPt^PatientQnNIH ToolboxLengthPoint 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 83164-4 | HealthAssure