LOINCActiveObservation

LOINC Code 56901-2: Amino acid pattern (Body fld) [Interp]

56901-2 is a LOINC code used to identify Amino acid pattern (Body fld) [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 Amino acid pattern. It is commonly used with the system or sample type Body fld.

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 Amino acid pattern. It is commonly used with the system or sample type Body fld.

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

  • Amino acid pattern [Interpretation] in Body fluid
  • Amino acid pattern
  • Acd; Acids; B/F; BF; bod; Bodies; Body fluid; Body fluid, unsp; Chemistry; Fl; Fld; FLU; Fluid; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; 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

Amino acid pattern (Body fld) [Interp]Amino acid pattern [Interpretation] in Body fluidAmino acid Pat Fld-ImpAmino acid patternCHEMAmino acid pattern, Body fluidImp

Frequently asked questions

Code details

Code56901-2
SystemLOINC
Display nameAmino acid pattern (Body fld) [Interp]
DescriptionAmino acid pattern
Short nameAmino acid Pat Fld-Imp
ComponentAmino acid pattern
PropertyImp
TimingPt
System (specimen)Body fld
ScaleNom
ClassCHEM
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.29
Last changed2.32

Consumer names

Amino acid pattern, Body fluid

Part names

Amino acid patternImpPtBody fldNomImpression/interpretation of studyPoint in time (spot)Body fluid

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 56901-2 | HealthAssure