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.

LOINCActiveObservation

LOINC Code 77252-5: Percent impairment - difficulty [OPTIMAL]

Name: LOINC Code 77252-5: Percent impairment - difficulty [OPTIMAL]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:57.647Z

77252-5 is a LOINC code used to identify Percent impairment - difficulty [OPTIMAL] 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 Percent impairment - difficulty. 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 Percent impairment - difficulty. 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: OPTIMAL

What it does not mean

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

Key facts

Percent impairment - difficulty [OPTIMAL]

Percent impairment - difficulty

The OPTIMAL percent impairment should be calculated independently for difficulty and confidence questions. Both the difficulty and confidence percent impairment can be calculated based on the patient's answers to all 22 movement items, to the three items the patient chooses as most important to be able to do without difficulty, or to a single item that the patient chooses as most important. The percent impairment can be mapped to the Centers for Medicare and Medicaid Services (CMS) Impairment Limitation Restriction G-codes, which are required for reporting to CMS. [http//www.apta.org/OPTIMAL/]

% impairment - diff; Outpatient Physical Therapy Improvement in Movement Assessment Log; Percentile; Point in time; QNT; Quan; Quant; Quantitative; Random; Survey; SURVEY.OPTIMAL

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

Percent impairment - difficulty [OPTIMAL]Percent impairment - difficultySURVEY.OPTIMALPrctlPt^PatientQn

Frequently asked questions

Code details

Code77252-5

SystemLOINC

Display namePercent impairment - difficulty [OPTIMAL]

DescriptionPercent impairment - difficulty

ComponentPercent impairment - difficulty

PropertyPrctl

TimingPt

System (specimen)^Patient

ScaleQn

MethodOPTIMAL

ClassSURVEY.OPTIMAL

Example units%

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.52

Last changed2.67

Part names

Percent impairment - difficultyPrctlPt^PatientQnOPTIMALPercentilePoint in time (spot)Outpatient Physical Therapy Improvement in Movement Assessment Log

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.