LOINC

LOINC Code 66518-2: Lichenification score Head and Neck [PhenX]

66518-2 is a LOINC code used to identify Lichenification score Head and Neck [PhenX] 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 Lichenification score. It is commonly used with the system or sample type Head+Neck.

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 Lichenification score. It is commonly used with the system or sample type Head+Neck.

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: TRIAL
  • Method: PhenX

What it does not mean

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

Key facts

  • Lichenification score Head and Neck [PhenX]
  • Lichenification score
  • Brain; Cranial; Cranium; Intracranial; Point in time; QNT; Quan; Quant; Quantitative; Random; Scale; Scre; Skull

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

Lichenification score Head and Neck [PhenX]Lichenification score Head+Neck PhenXLichenification scorePHENXScorePtHead+Neck

Frequently asked questions

Code details

Code66518-2
SystemLOINC
Display nameLichenification score Head and Neck [PhenX]
DescriptionLichenification score
Short nameLichenification score Head+Neck PhenX
ComponentLichenification score
PropertyScore
TimingPt
System (specimen)Head+Neck
ScaleQn
MethodPhenX
ClassPHENX
Example unitsscore
StatusTRIAL

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.38
Last changed2.65

Part names

Lichenification scoreScorePtHead+NeckQnPhenXPoint in time (spot)Head and Neck

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 66518-2 | HealthAssure