LOINCActiveObservation

LOINC Code 9728-7: CD3-CD16+CD56+ (Natural killer) cells (Bld) [#/Vol]

9728-7 is a LOINC code used to identify CD3-CD16+CD56+ (Natural killer) cells (Bld) [#/Vol] 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 Cells.CD3-CD16+CD56+. 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 Cells.CD3-CD16+CD56+. 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: Observation

What it does not mean

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

Key facts

  • CD3-CD16+CD56+ (Natural killer) cells [#/volume] in Blood
  • Cells.CD3-CD16+CD56+
  • #; ABS; absolute; absolutes; Blood; CD3 Cells; CD3+CD16+ Cells; CD3+CD16+CD56+ Cells; CD3-CD16+ Cells; CD3-CD16+CD56+ Cells; Cell; CELL MARKERS; Cellularity; Cnt; Count; Count/volume; CT; FCGR3A; Leu11; Leu-11; Leu11b; Leu-11B; Leu19; Leu-19; Leu4; Leu-4; Natural killer cells; NCAM; Neural cell adhesion molecule; NKH1; Number concentration; Number Concentration (count/vol); Point in time; QNT; Quan; Quant; Quantitative; Random; T3; 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

CD3-CD16+CD56+ (Natural killer) cells (Bld) [#/Vol]CD3-CD16+CD56+ (Natural killer) cells [#/volume] in BloodCD3-CD16+CD56+ Cells # BldCells.CD3-CD16+CD56+CELLMARKCD3-CD16+CD56+ (Natural Killer) Cells, BloodNCnc

Frequently asked questions

Code details

Code9728-7
SystemLOINC
Display nameCD3-CD16+CD56+ (Natural killer) cells (Bld) [#/Vol]
DescriptionCells.CD3-CD16+CD56+
Short nameCD3-CD16+CD56+ Cells # Bld
ComponentCells.CD3-CD16+CD56+
PropertyNCnc
TimingPt
System (specimen)Bld
ScaleQn
ClassCELLMARK
Example units/uL
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0i
Last changed2.73

Consumer names

CD3-CD16+CD56+ (Natural Killer) Cells, Blood

Part names

Cells.CD3-CD16+CD56+NCncPtBldQnCD3-CD16+CD56+ (Natural killer) cellsNumber ConcentrationPoint 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 9728-7 | HealthAssure