Z00.6

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

Billable / specificPOA exempt

Z00.6 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Applicable to

  • Examination of participant or control in clinical research program

Includes (from Z00)

  • Note: Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
  • Note: (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
  • Note: (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.
  • Note: Nonspecific abnormal findings disclosed at the time of these examinations are classified to categories R70-R94.

Excludes1

Not coded here — never report together with this code.

  • encounter for examination for administrative purposes (Z02.-) (from Z00)

Excludes2

Not included here — may be reported together when both conditions exist.

  • examinations related to pregnancy and reproduction (Z30-Z36, Z39.-) (from Z00)
  • encounter for pre-procedural examinations (Z01.81-) (from Z00)
  • special screening examinations (Z11-Z13) (from Z00)

Also known as

  • Examination of participant or control in clinical research program
  • Admission, clinical research investigation
  • Admission, examination at health care facility, clinical research investigation
  • Clinical research investigation
  • Examination, clinical research control or normal comparison
  • Examination, medical, clinical research, normal subject
  • Examination, medical, control subject in clinical research
  • Investigation, clinical research subject
  • Person, admitted for clinical research, as a control subject

Parent code

  • Z00Encounter for general examination without complaint, suspected or reported diagnosisHeader

Related codes

  • Z00.0Encounter for general adult medical examinationHeader
  • Z00.1Encounter for newborn, infant and child health examinationsHeader
  • Z00.2Encounter for examination for period of rapid growth in childhoodBillable
  • Z00.3Encounter for examination for adolescent development stateBillable
  • Z00.5Encounter for examination of potential donor of organ and tissueBillable
  • Z00.7Encounter for examination for period of delayed growth in childhoodHeader
  • Z00.8Encounter for other general examinationBillable

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