LOINCActiveObservation

LOINC Code 74224-7: Disease category (BM) [Interp]

74224-7 is a LOINC code used to identify Disease category (BM) [Interp] 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 Disease category. It is commonly used with the system or sample type 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 Disease category. It is commonly used with the system or sample type 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: Observation

What it does not mean

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

Key facts

  • Disease category [Interpretation] in Bone marrow
  • Disease category
  • The disease classification(s) included the bone marrow pathology report, as described by the World Health Organization (WHO). The list of answers provided with this term are examples and not a comprehensive list.
  • BM; BON; Bone marrow; Dis; Diseases; Dz; HEMATOLOGY/CELL COUNTS; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; MAR; Marrow (bone); minimal angle of resolution; Minimum angle of resolution; Nominal; 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

Disease category (BM) [Interp]Disease category [Interpretation] in Bone marrowDisease category Mar-ImpDisease categoryHEM/BCDisease category, Bone marrowImp

Frequently asked questions

Code details

Code74224-7
SystemLOINC
Display nameDisease category (BM) [Interp]
DescriptionDisease category
Short nameDisease category Mar-Imp
ComponentDisease category
PropertyImp
TimingPt
System (specimen)Bone mar
ScaleNom
ClassHEM/BC
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.46
Last changed2.73

Consumer names

Disease category, Bone marrow

Part names

Disease categoryImpPtBone marNomImpression/interpretation of studyPoint in time (spot)Bone 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 74224-7 | HealthAssure