Z00.6 – Encounter for examination for normal comparison and control in clinical research program
ICD-10-CM 2027 diagnosis code · Persons encountering health services for examinations
- Code
Z00.6(claims format:Z006)- Description
- Encounter for examination for normal comparison and control in clinical research program
- Short description
- Encntr for exam for nrml cmprsn and ctrl in clncl rsrch prog
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 21. Factors influencing health status and contact with health services (Z00-Z99)
- Block
- Z00-Z13 Persons encountering health services for examinations
- Parent codes
- Z00
Notes for Z00.6
- Examination of participant or control in clinical research program
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Z00 – Encounter for general examination without complaint, suspected or reported diagnosis
- encounter for examination for administrative purposes (Z02.-)
Block Z00-Z13
- Nonspecific abnormal findings disclosed at the time of these examinations are classified to categories R70-R94.
Index terms for Z00.6
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Clinical research investigation
- Investigation, clinical research subject
- Admission, clinical research investigation
- Examination, medical, clinical research, normal subject
- Examination, medical, control subject in clinical research
- Examination, clinical research control or normal comparison
- Person, admitted for clinical research, as a control subject
- Admission, examination at health care facility, clinical research investigation
Related codes in Z00
- Z00.0 – Encounter for general adult medical examinationHeader
- Z00.1 – Encounter for newborn, infant and child health examinationsHeader
- Z00.2 – Encounter for examination for period of rapid growth in childhoodBillable
- Z00.3 – Encounter for examination for adolescent development stateBillable
- Z00.5 – Encounter for examination of potential donor of organ and tissueBillable
- Z00.7 – Encounter for examination for period of delayed growth in childhoodHeader
- Z00.8 – Encounter for other general examinationBillable
Frequently asked questions
What is ICD-10 code Z00.6?
Z00.6 is the ICD-10-CM code for encounter for examination for normal comparison and control in clinical research program, in the block Z00-Z13 (Persons encountering health services for examinations).
Is Z00.6 a billable code?
Yes. Z00.6 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does Z00.6 belong to?
It belongs to category Z00 – Encounter for general examination without complaint, suspected or reported diagnosis.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.