LOINCActiveOrder

LOINC Code 55164-8: Paroxysmal nocturnal panel (Bld)

55164-8 is a LOINC code used to identify Paroxysmal nocturnal panel (Bld) 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 Paroxysmal nocturnal panel. It is commonly used with the system or sample type Bld.

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 Paroxysmal nocturnal panel. It is commonly used with the system or sample type Bld.

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: Order
  • Panel type: Panel

What it does not mean

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

Key facts

  • Paroxysmal nocturnal panel - Blood
  • Paroxysmal nocturnal panel
  • Blood; CELL MARKERS; Pan; PANEL.CELLMARK; Panl; Paroxysmal nocturnal Pnl; PNH; Pnl; Point in time; QNT; Quan; Quant; Quantitative; Random; UniversalLabOrders; WB; Whole blood

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

Paroxysmal nocturnal panel (Bld)Paroxysmal nocturnal panel - BloodParoxysmal nocturnal Pnl BldParoxysmal nocturnal panelPANEL.CELLMARKParoxysmal nocturnal panel, Blood-

Frequently asked questions

Code details

Code55164-8
SystemLOINC
Display nameParoxysmal nocturnal panel (Bld)
DescriptionParoxysmal nocturnal panel
Short nameParoxysmal nocturnal Pnl Bld
ComponentParoxysmal nocturnal panel
Property-
TimingPt
System (specimen)Bld
ScaleQn
ClassPANEL.CELLMARK
StatusACTIVE
Order/ObservationOrder

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.27
Last changed2.73

Consumer names

Paroxysmal nocturnal panel, Blood

Part names

Paroxysmal nocturnal panel-PtBldQnPoint in time (spot)Blood

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 55164-8 | HealthAssure