What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActive

LOINC Code 63591-2: What was the largest number of drinks that you ever drank in a single day [AUDADIS-IV]

Name: LOINC Code 63591-2: What was the largest number of drinks that you ever drank in a single day [AUDADIS-IV]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:42.802Z

63591-2 is a LOINC code used to identify What was the largest number of drinks that you ever drank in a single day [AUDADIS-IV] 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 What was the largest number of drinks that you ever drank in a single day. 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 What was the largest number of drinks that you ever drank in a single day. 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
Method: AUDADIS-IV

What it does not mean

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

Key facts

What was the largest number of drinks that you ever drank in a single day [AUDADIS-IV]

What was the largest number of drinks that you ever drank in a single day

The next question is about drinking alcohol. This includes coolers, beer, wine, champagne, liquor such as whiskey, rum, gin, vodka, scotch, or liqueurs, and also any other type of alcohol. Definition of a standard drink1 12oz bottle of beer, 1 glass 4oz non-fortified wine, 1 mixed drink with 1oz liquor.

Alcohol max drinks 1D; Consumed; Count/time; Drink; No; nRate; Num; Number rate; Number Rate = Count/Time; PhenX; Point in time; QNT; Quan; Quant; Quantitative; Random

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

What was the largest number of drinks that you ever drank in a single day [AUDADIS-IV]Alcohol max drinks 1D nRate AUDADIS-IVWhat was the largest number of drinks that you ever drank in a single dayPHENXNRatPt^Patient

Frequently asked questions

Code details

Code63591-2

SystemLOINC

Display nameWhat was the largest number of drinks that you ever drank in a single day [AUDADIS-IV]

DescriptionWhat was the largest number of drinks that you ever drank in a single day

Short nameAlcohol max drinks 1D nRate AUDADIS-IV

ComponentWhat was the largest number of drinks that you ever drank in a single day

PropertyNRat

TimingPt

System (specimen)^Patient

ScaleQn

MethodAUDADIS-IV

ClassPHENX

Example units/d

StatusACTIVE

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.36

Last changed2.68

Part names

What was the largest number of drinks that you ever drank in a single dayNRatPt^PatientQnAUDADIS-IVNumber RatePoint 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.