LOINCActiveObservation

LOINC Code 86901-6: Length during assessment period [CMS Assessment] Pressure injury.largest stage 3 or 4

86901-6 is a LOINC code used to identify Length during assessment period [CMS Assessment] Pressure injury.largest stage 3 or 4 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 Length. It is commonly used with the system or sample type Pressure injury.largest stage 3 or 4.

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 Length. It is commonly used with the system or sample type Pressure injury.largest stage 3 or 4.

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: CMS Assessment

What it does not mean

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

Key facts

  • Length during assessment period [CMS Assessment] Pressure injury.largest stage 3 or 4
  • Length
  • Measured as the longest length of the pressure ulcer oriented from head to toe of the patient.
  • Centers for Medicare and Medicaid Assessment; III; Len; Length; Pressure ulcer; Pressure Ulcers; QNT; Quan; Quant; Quantitative; Report period; Survey; Ulcer

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

Length during assessment period [CMS Assessment] Pressure injury.largest stage 3 or 4LengthSURVEY.CMSLenRptPeriodPressure injury.largest stage 3 or 4Qn

Frequently asked questions

Code details

Code86901-6
SystemLOINC
Display nameLength during assessment period [CMS Assessment] Pressure injury.largest stage 3 or 4
DescriptionLength
ComponentLength
PropertyLen
TimingRptPeriod
System (specimen)Pressure injury.largest stage 3 or 4
ScaleQn
MethodCMS Assessment
ClassSURVEY.CMS
Example unitscm
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.63
Last changed2.77

Part names

LengthLenRptPeriodPressure injury.largest stage 3 or 4QnCMS AssessmentReporting PeriodCenters for Medicare and Medicaid Assessment

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.