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ICD10BillableValid for clinical use

ICD-10 Code Z00.6: Encounter for examination for normal comparison and control in clinical research program

Z00.6 is a billable ICD-10 diagnosis code used to classify Encounter for examination for normal comparison and control in clinical research program in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Factors influencing health status and contact with health services (Z00-Z99).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Factors influencing health status and contact with health services (Z00-Z99).

When is it used?

  • May be used when a clinician documents encounter for examination for normal comparison and control in clinical research program in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
21Factors influencing health status and contact with health services (Z00-Z99)
block
Z00-Z13Persons encountering health services for examinations
category
Z00Encounter for general examination without complaint, suspected or reported diagnosis
currentZ00

Official coding notes

Inclusion terms
  • Examination of participant or control in clinical research program

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

General PhysicianENT Specialist

Coverage-related procedures and services

CPT 0577Thigh
ELECTROPHYSIOLOGIC EVALUATION OF IMPLANTABLE CARDIOVERTER-DEFIBRILLATOR SYSTEM WITH SUBSTERNAL ELECTRODE (INCLUDES DEFIBRILLATION THRESHOLD EVALUATION, INDUCTION OF ARRHYTHMIA, EVALUATION OF SENSING FOR ARRHYTHMIA TERMINATION, AND PROGRAMMING OR REPROGRAMMING OF SENSING OR THERAPEUTIC PARAMETERS)
Source: CMS coverage guidance
CPT 33217high
INSERTION OF 2 TRANSVENOUS ELECTRODES, PERMANENT PACEMAKER OR IMPLANTABLE DEFIBRILLATOR
Source: CMS coverage guidance
CPT 33216high
INSERTION OF A SINGLE TRANSVENOUS ELECTRODE, PERMANENT PACEMAKER OR IMPLANTABLE DEFIBRILLATOR
Source: CMS coverage guidance
CPT 33203high
INSERTION OF EPICARDIAL ELECTRODE(S); ENDOSCOPIC APPROACH (EG, THORACOSCOPY, PERICARDIOSCOPY)
Source: CMS coverage guidance
CPT 33202high
INSERTION OF EPICARDIAL ELECTRODE(S); OPEN INCISION (EG, THORACOTOMY, MEDIAN STERNOTOMY, SUBXIPHOID APPROACH)
Source: CMS coverage guidance
CPT 33230high
INSERTION OF IMPLANTABLE DEFIBRILLATOR PULSE GENERATOR ONLY; WITH EXISTING DUAL LEADS
Source: CMS coverage guidance

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
Z00.6

Common synonyms

Encounter for examination for normal comparison and control in clinical research program

Frequently asked questions

Code details

CodeZ00.6
SystemICD10
Display nameEncounter for examination for normal comparison and control in clinical research program
ChapterFactors influencing health status and contact with health services (Z00-Z99)
BlockPersons encountering health services for examinations

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Admission(for)Admission(for)Clinical research investigation(clinical trial) (control subject) (normal comparison) (participant)Examination(for) (following) (general) (of) (routine)Examination(for) (following) (general) (of) (routine)Examination(for) (following) (general) (of) (routine)InvestigationPerson(with)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. 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.

ICD-10 Code Z00.6 for Encounter for examination for normal comparison and control in clinical research program | HealthAssure