LOINCActive

LOINC Code 56836-0: History of Blood transfusion Narrative

56836-0 is a LOINC code used to identify History of Blood transfusion Narrative 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 Blood transfusion. 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 Blood transfusion. 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

What it does not mean

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

Key facts

  • History of Blood transfusion Narrative
  • Blood transfusion
  • H+P; H+P.HX; History; Narrative; P prime; Point in time; Random; Report; Tx

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

History of Blood transfusion NarrativeHx of Blood transfusionBlood transfusionH&P.HXHxPt^Patient

Frequently asked questions

Code details

Code56836-0
SystemLOINC
Display nameHistory of Blood transfusion Narrative
DescriptionBlood transfusion
Short nameHx of Blood transfusion
ComponentBlood transfusion
PropertyHx
TimingPt
System (specimen)^Patient
ScaleNar
ClassH&P.HX
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.29
Last changed2.73

Part names

Blood transfusionHxPt^PatientNarHistoryPoint 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 56836-0 | HealthAssure