Z00.6
Encounter for examination for normal comparison and control in clinical research program
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 4 never code together
Instructional notes 5
Z00.6code
Inclusion terms
- Examination of participant or control in clinical research program
Z00-Z13block
Notes
- Nonspecific abnormal findings disclosed at the time of these examinations are classified to categories R70-R94.R70-R94
Z00-Z99chapter
Notes
- 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:Z00-Z99A00-Y89
- (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.
- (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.
Index entries leading here 5
- Admission (for) — see also Encounter (for)
- Person (with)
- admitted for clinical research, as a control subject (normal comparison) (participant) Z00.6
- Examination (for) (following) (general) (of) (routine) Z00.00
- Clinical research investigation (clinical trial) (control subject) (normal comparison) (participant) Z00.6
- Investigation Z04.9
- clinical research subject (control) (normal comparison) (participant) Z00.6
Alongside this code 7 same parent — Z00
Z00.0 Encounter for general adult medical examination category Z00.1 Encounter for newborn, infant and child health examinations category Z00.2 Encounter for exam for period of rapid growth in childhood Z00.3 Encounter for examination for adolescent development state Z00.5 Encounter for exam of potential donor of organ and tissue Z00.7 Encntr for exam for delay growth in childhood category Z00.8 Encounter for other general examination
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.