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LOINC Code 66577-8: Now thinking about your physical health, which includes physical illness and injury, for how many days during the past 30 days was your physical health not good [HRQOL]

66577-8 is a LOINC code used to identify Now thinking about your physical health, which includes physical illness and injury, for how many days during the past 30 days was your physical health not good [HRQOL] 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 Now thinking about your physical health, which includes physical illness and injury, for how many Ds during the past 30D was your physical health not good. 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 Now thinking about your physical health, which includes physical illness and injury, for how many Ds during the past 30D was your physical health not good. 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: HRQOL

What it does not mean

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

Key facts

  • Now thinking about your physical health, which includes physical illness and injury, for how many days during the past 30 days was your physical health not good [HRQOL]
  • Now thinking about your physical health, which includes physical illness and injury, for how many Ds during the past 30D was your physical health not good
  • Count/time; Last; nRate; Number rate; Number Rate = Count/Time; PhenX; Poor phys health last 30D; QNT; Quan; Quant; Quantitative; Ulcer

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

Now thinking about your physical health, which includes physical illness and injury, for how many days during the past 30 days was your physical health not good [HRQOL]Poor phys health last 30D nRate HRQOLNow thinking about your physical health, which includes physical illness and injury, for how many Ds during the past 30D was your physical health not goodPHENXNRat30D^Patient

Frequently asked questions

Code details

Code66577-8
SystemLOINC
Display nameNow thinking about your physical health, which includes physical illness and injury, for how many days during the past 30 days was your physical health not good [HRQOL]
DescriptionNow thinking about your physical health, which includes physical illness and injury, for how many Ds during the past 30D was your physical health not good
Short namePoor phys health last 30D nRate HRQOL
ComponentNow thinking about your physical health, which includes physical illness and injury, for how many Ds during the past 30D was your physical health not good
PropertyNRat
Timing30D
System (specimen)^Patient
ScaleQn
MethodHRQOL
ClassPHENX
Example unitsdays/30 days
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.38
Last changed2.65

Part names

Now thinking about your physical health, which includes physical illness and injury, for how many Ds during the past 30D was your physical health not goodNRat30D^PatientQnHRQOLNow thinking about your physical health, which includes physical illness and injury, for how many days during the past 30 days was your physical health not goodNumber Rate30 days

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.