LOINCActiveObservation

LOINC Code 85403-4: Secondary payment source during assessment period [CMS Assessment]

85403-4 is a LOINC code used to identify Secondary payment source during assessment period [CMS Assessment] 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 Payment source.secondary. 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 Payment source.secondary. 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: CMS Assessment

What it does not mean

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

Key facts

  • Secondary payment source during assessment period [CMS Assessment]
  • Payment source.secondary
  • Centers for Medicare and Medicaid Assessment; Nominal; Report period; Srce; Survey; Typ

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

Secondary payment source during assessment period [CMS Assessment]Payment source.secondarySURVEY.CMSTypeRptPeriod^PatientNom

Frequently asked questions

Code details

Code85403-4
SystemLOINC
Display nameSecondary payment source during assessment period [CMS Assessment]
DescriptionPayment source.secondary
ComponentPayment source.secondary
PropertyType
TimingRptPeriod
System (specimen)^Patient
ScaleNom
MethodCMS Assessment
ClassSURVEY.CMS
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.61
Last changed2.77

Part names

Payment source.secondaryTypeRptPeriod^PatientNomCMS AssessmentSecondary payment sourceReporting PeriodCenters for Medicare and Medicaid Assessment

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 85403-4 | HealthAssure