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LOINC Code 64256-1: About how many such episodes of cough with phlegm that lasted 1 week or more have you had in the past 12 months [PhenX]

64256-1 is a LOINC code used to identify About how many such episodes of cough with phlegm that lasted 1 week or more have you had in the past 12 months [PhenX] 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 About how many such episodes of cough with phlegm that lasted 1 W or more have you had in the past 12Mo. 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 About how many such episodes of cough with phlegm that lasted 1 W or more have you had in the past 12Mo. 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: TRIAL
  • Method: PhenX

What it does not mean

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

Key facts

  • About how many such episodes of cough with phlegm that lasted 1 week or more have you had in the past 12 months [PhenX]
  • About how many such episodes of cough with phlegm that lasted 1 W or more have you had in the past 12Mo
  • 1 year; 12Mos; Count/time; Hx cough phlegm > 1W; i; Last; nRate; Number rate; Number Rate = Count/Time; QNT; Quan; Quant; Quantitative

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

About how many such episodes of cough with phlegm that lasted 1 week or more have you had in the past 12 months [PhenX]How many times cough phlegm > 1W PhenXAbout how many such episodes of cough with phlegm that lasted 1 W or more have you had in the past 12MoPHENXNRat12Mo^Patient

Frequently asked questions

Code details

Code64256-1
SystemLOINC
Display nameAbout how many such episodes of cough with phlegm that lasted 1 week or more have you had in the past 12 months [PhenX]
DescriptionAbout how many such episodes of cough with phlegm that lasted 1 W or more have you had in the past 12Mo
Short nameHow many times cough phlegm > 1W PhenX
ComponentAbout how many such episodes of cough with phlegm that lasted 1 W or more have you had in the past 12Mo
PropertyNRat
Timing12Mo
System (specimen)^Patient
ScaleQn
MethodPhenX
ClassPHENX
Example units#
StatusTRIAL

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.36
Last changed2.65

Part names

About how many such episodes of cough with phlegm that lasted 1 W or more have you had in the past 12MoNRat12Mo^PatientQnPhenXAbout how many such episodes of cough with phlegm that lasted 1 week or more have you had in the past 12 monthsNumber Rate12 months

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.