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.

LOINCObservation

LOINC Code 29166-6: Deprecated Speech therapy treatment plan, Primary diagnosis (narrative)

Name: LOINC Code 29166-6: Deprecated Speech therapy treatment plan, Primary diagnosis (narrative)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:15.473Z

29166-6 is a LOINC code used to identify Deprecated Speech therapy treatment plan, Primary diagnosis (narrative) 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 Diagnosis.primary. It is commonly used with the system or sample type Speech therapy treatment.

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 Diagnosis.primary. It is commonly used with the system or sample type Speech therapy treatment.

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: DEPRECATED
Order vs observation: Observation

What it does not mean

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

Key facts

Deprecated Speech therapy treatment plan, Primary diagnosis (narrative)
Diagnosis.primary
ATTACH; ATTACH.REHAB; ATTACH.REHAB.SPEECH; Dx; Dx.primary; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; Narrative; Point in time; Random; Report; Speech therapy Tx; Tx

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

Deprecated Speech therapy treatment plan, Primary diagnosis (narrative)DeprecatedDiagnosis.primaryATTACH.REHAB.SPEECHImpPtSpeech therapy treatment

Frequently asked questions

Code details

Code29166-6

SystemLOINC

Display nameDeprecated Speech therapy treatment plan, Primary diagnosis (narrative)

DescriptionDiagnosis.primary

Short nameDeprecated

ComponentDiagnosis.primary

PropertyImp

TimingPt

System (specimen)Speech therapy treatment

ScaleNar

ClassATTACH.REHAB.SPEECH

StatusDEPRECATED

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.03

Last changed2.66

Part names

Diagnosis.primaryImpPtSpeech therapy treatmentNarImpression/interpretation of studyPoint 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.