What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveObservation

LOINC Code 81175-2: Distance of tumor from closest margin Macroscopy (Spec) [Length]

Name: LOINC Code 81175-2: Distance of tumor from closest margin Macroscopy (Spec) [Length]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:05.774Z

81175-2 is a LOINC code used to identify Distance of tumor from closest margin Macroscopy (Spec) [Length] 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 Distance of tumor from closest margin. It is commonly used with the system or sample type Specimen.

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 Distance of tumor from closest margin. It is commonly used with the system or sample type Specimen.

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
Method: Macroscopy

What it does not mean

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

Key facts

Distance of tumor from closest margin [Length] in Specimen by Macroscopy

Distance of tumor from closest margin

In a specimen, the distance from the tumor to the nearest proximal or distal margin (cut end) is recorded. The tumor distance to margins is based on macroscopic assessment and confirmed or amended on microscopy ([LOINC81182-8] or [LOINC: 81183-6]), especially when the macroscopic size is difficult to assess (i.e. in early gastric carcinoma and diffuse carcinoma).

Length; Pathology; Point in time; QNT; Quan; Quant; Quantitative; Random; Spec

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

Distance of tumor from closest margin Macroscopy (Spec) [Length]Distance of tumor from closest margin [Length] in Specimen by MacroscopyTumor from Closest Margin Spec MacroDistance of tumor from closest marginPATHDistance of tumor from closest margin, SpecimenLen

Frequently asked questions

Code details

Code81175-2

SystemLOINC

Display nameDistance of tumor from closest margin Macroscopy (Spec) [Length]

DescriptionDistance of tumor from closest margin

Short nameTumor from Closest Margin Spec Macro

ComponentDistance of tumor from closest margin

PropertyLen

TimingPt

System (specimen)Specimen

ScaleQn

MethodMacroscopy

ClassPATH

Example unitsmm

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.56

Last changed2.56

Consumer names

Distance of tumor from closest margin, Specimen

Part names

Distance of tumor from closest marginLenPtSpecimenQnMacroscopyLengthPoint in time (spot)

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.