LOINCActive

LOINC Code 33999-4: Diagnosis status

33999-4 is a LOINC code used to identify Diagnosis status 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 Status. It is commonly used with the system or sample type {Diagnosis}.

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 Status. It is commonly used with the system or sample type {Diagnosis}.

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

What it does not mean

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

Key facts

  • Diagnosis status
  • Status
  • This term classifies the status of a diagnosis.
  • {Dx}; H+P; H+P.HX; Nominal; P prime; Point in time; Random

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

Diagnosis statusStatus {Dx}StatusH&P.HXClassPt{Diagnosis}

Frequently asked questions

Code details

Code33999-4
SystemLOINC
Display nameDiagnosis status
DescriptionStatus
Short nameStatus {Dx}
ComponentStatus
PropertyClass
TimingPt
System (specimen){Diagnosis}
ScaleNom
ClassH&P.HX
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.09
Last changed2.72

Part names

StatusClassPt{Diagnosis}NomPoint 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 33999-4 | HealthAssure