LOINCActiveBoth

LOINC Code 99397-2: Siderocytes.Type 2/Erythroblasts Prussian blue stain (Bld/BM)

99397-2 is a LOINC code used to identify Siderocytes.Type 2/Erythroblasts Prussian blue stain (Bld/BM) 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 Siderocytes.Type 2/Erythroblasts. It is commonly used with the system or sample type Bld/Bone mar.

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 Siderocytes.Type 2/Erythroblasts. It is commonly used with the system or sample type Bld/Bone mar.

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: Both
  • Method: Prussian blue stain

What it does not mean

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

Key facts

  • Siderocytes.Type 2/Erythroblasts in Blood or Marrow by Prussian blue stain
  • Siderocytes.Type 2/Erythroblasts
  • Bld/Mar; Blood; BM; BON; Bone marrow; HEMATOLOGY/CELL COUNTS; II; MAR; Marrow (bone); minimal angle of resolution; Minimum angle of resolution; Number fraction; Percent; Point in time; Prus Bl St; QNT; Quan; Quant; Quantitative; Random; Siderocytes.Tp 2; St; Stains; Stn; WB; Whole blood; Whole blood or Bone marrow

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

Siderocytes.Type 2/Erythroblasts Prussian blue stain (Bld/BM)Siderocytes.Type 2/Erythroblasts in Blood or Marrow by Prussian blue stainSiderocytes.Tp 2 NFr Bld/Mar Prus Bl StSiderocytes.Type 2/ErythroblastsHEM/BCSiderocytes.Type 2/Erythroblasts, Blood Or Bone marrowNFr

Frequently asked questions

Code details

Code99397-2
SystemLOINC
Display nameSiderocytes.Type 2/Erythroblasts Prussian blue stain (Bld/BM)
DescriptionSiderocytes.Type 2/Erythroblasts
Short nameSiderocytes.Tp 2 NFr Bld/Mar Prus Bl St
ComponentSiderocytes.Type 2/Erythroblasts
PropertyNFr
TimingPt
System (specimen)Bld/Bone mar
ScaleQn
MethodPrussian blue stain
ClassHEM/BC
Example units%
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.72
Last changed2.79

Consumer names

Siderocytes.Type 2/Erythroblasts, Blood Or Bone marrow

Part names

Siderocytes.Type 2/ErythroblastsNFrPtBld/Bone marQnPrussian blue stainNumber FractionPoint in time (spot)Blood or Marrow

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 99397-2 | HealthAssure