LOINCActiveObservation

LOINC Code 49317-1: Hemoglobin pattern Nar (Bld) [Interp]

49317-1 is a LOINC code used to identify Hemoglobin pattern Nar (Bld) [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 Hemoglobin pattern. 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 Hemoglobin pattern. 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

  • Hemoglobin pattern [Interpretation] in Blood Narrative
  • Hemoglobin pattern
  • Blood; Haemoglobin; Hb; HEMATOLOGY/CELL COUNTS; Hgb; Hgb Fract; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; Narrative; Point in time; Random; Report; 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

Hemoglobin pattern Nar (Bld) [Interp]Hemoglobin pattern [Interpretation] in Blood NarrativeHgb Fract Bld-ImpHemoglobin patternHEM/BCInterpretation of Hemoglobin pattern test result, BloodImp

Frequently asked questions

Code details

Code49317-1
SystemLOINC
Display nameHemoglobin pattern Nar (Bld) [Interp]
DescriptionHemoglobin pattern
Short nameHgb Fract Bld-Imp
ComponentHemoglobin pattern
PropertyImp
TimingPt
System (specimen)Bld
ScaleNar
ClassHEM/BC
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.21
Last changed2.73

Consumer names

Interpretation of Hemoglobin pattern test result, Blood

Part names

Hemoglobin patternImpPtBldNarImpression/interpretation of studyPoint 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 49317-1 | HealthAssure