Z00.6 Encounter for examination for normal comparison and control in clinical research program
Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.
Applicable to
Examination of participant or control in clinical research program
Applies from Z00 Encounter for general examination without complaint, suspected or reported diagnosis
Excludes1 (never code together)
encounter for examination for administrative purposes (Z02.-)
Excludes2 (not included here)
encounter for pre-procedural examinations (Z01.81-)
special screening examinations (Z11-Z13)
MS-DRG index
Defines the logic of DRG(s) 951 in MDC 23.
Approximate ICD-9-CM (GEMs)
V70.7 Examination of participant in clinical trial
Code annotations containing back-references to Z00.6
Back-references to Z00
Type 1 Excludes: Z02.7 Encounter for issue of medical certificate ("encounter for general medical examination (Z00-Z01, Z02.0-Z02.6, Z02.8-Z02.9)")
Diagnosis Index entries for Z00.6
Admission (for) › clinical research investigation (control) (normal comparison) (participant)
Admission (for) › examination at health care facility (adult) › clinical research investigation (control) (normal comparison) (participant)
Clinical research investigation (clinical trial) (control subject) (normal comparison) (participant)
Examination (for) (following) (general) (of) (routine) › clinical research control or normal comparison (control) (participant)
Examination (for) (following) (general) (of) (routine) › medical (adult) (for) (of) › clinical research, normal subject (control) (participant)
Examination (for) (following) (general) (of) (routine) › medical (adult) (for) (of) › control subject in clinical research (normal comparison) (participant)
Investigation › clinical research subject (control) (normal comparison) (participant)
Person (with) › admitted for clinical research, as a control subject (normal comparison) (participant)
Nearby codes
Z00.121 Encounter for routine child health examination with abnormal findings
Z00.129 Encounter for routine child health examination without abnormal findings
Z00.2 Encounter for examination for period of rapid growth in childhood
Z00.3 Encounter for examination for adolescent development state
Z00.5 Encounter for examination of potential donor of organ and tissue
Z00.6 Encounter for examination for normal comparison and control in clinical research program (this code)
Z00.7 Encounter for examination for period of delayed growth in childhood
Z00.70 Encounter for examination for period of delayed growth in childhood without abnormal findings
Z00.71 Encounter for examination for period of delayed growth in childhood with abnormal findings