LOINCActive

LOINC Code 46585-6: Payment diagnosis - first secondary ICD [OASIS]

46585-6 is a LOINC code used to identify Payment diagnosis - first secondary ICD [OASIS] 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 diagnosis - first secondary ICD. 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 diagnosis - first secondary ICD. 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: OASIS

What it does not mean

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

Key facts

  • Payment diagnosis - first secondary ICD [OASIS]
  • Payment diagnosis - first secondary ICD
  • A case mix diagnosis is a primary diagnosis that assigns patients with selected conditions to an orthopedic, diabetes, neurological, or burns/trauma group for Medicare PPS case mix adjustment. A case mix diagnosis may involve manifestation coding.
  • Dx; Identity or presence; International Classification of Diseases; Nominal; Outcome and assessment information set; Payment Dx; Payment Dx- first secondary ICD; Point in time; Random; Survey; Survey.OASIS

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

Payment diagnosis - first secondary ICD [OASIS]Payment diagnosis - first secondary ICDSURVEY.OASISPridPt^PatientNom

Frequently asked questions

Code details

Code46585-6
SystemLOINC
Display namePayment diagnosis - first secondary ICD [OASIS]
DescriptionPayment diagnosis - first secondary ICD
ComponentPayment diagnosis - first secondary ICD
PropertyPrid
TimingPt
System (specimen)^Patient
ScaleNom
MethodOASIS
ClassSURVEY.OASIS
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.19
Last changed2.54

Part names

Payment diagnosis - first secondary ICDPridPt^PatientNomOASISPresence or IdentityPoint 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.

LOINC Code 46585-6 | HealthAssure