DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

Z00 Encounter for general examination without complaint, suspected or reported diagnosis

  • Header · not billable

Z00 is not billable. The category heads 13 billable codes in FY2027, grouped under 8 subdivisions.

Index → code

  • Examination (for) (following) (general) (of) (routine) → Z00.00
  • Admission (for)examination at health care facility (adult) → Z00.00
  • X-ray (of)routine (as part of a general medical examination) → Z00.00

Where it sits

  1. Chapter 21 Factors influencing health status and contact with health services (Z00-Z99)
  2. Z00-Z13 Persons encountering health services for examinations (Z00-Z13)
  3. Z00 Encounter for general examination without complaint, suspected or reported diagnosis
Billable codes
13
Subdivisions
8
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
56

Codes in Z00

  1. Z00.0
    Encounter for general adult medical examination 2 billable codes
    Header
  2. Z00.1
    Encounter for newborn, infant and child health examinations
    Header
  3. Z00.11
    Newborn health examination
    Header
    Inclusion terms 1, Excludes1 1, Use additional code 1

    Inclusion terms

    • Health check for child under 29 days old

    Excludes1

    • health check for child over 28 days old (Z00.12-) Z00.12

    Use additional code

    • code to identify any abnormal findings
  4. Z00.110
    Health examination for newborn under 8 days old
    BillableExempt
    Inclusion terms 1

    Inclusion terms

    • Health check for newborn under 8 days old
  5. Z00.111
    Health examination for newborn 8 to 28 days old
    BillableExempt
    Inclusion terms 2

    Inclusion terms

    • Health check for newborn 8 to 28 days old
    • Newborn weight check
  6. Z00.12
    Encounter for routine child health examination
    Header
    Inclusion terms 4, Excludes1 3

    Inclusion terms

    • Health check (routine) for child over 28 days old
    • Immunizations appropriate for age
    • Routine developmental screening of infant or child
    • Routine vision and hearing testing

    Excludes1

    • health check for child under 29 days old (Z00.11-) Z00.11
    • health supervision of foundling or other healthy infant or child (Z76.1-Z76.2) Z76.1 Z76.2
    • newborn health examination (Z00.11-) Z00.11
  7. Z00.121
    Encounter for routine child health examination with abnormal findings
    BillableExempt
    Use additional code 1

    Use additional code

    • code to identify abnormal findings
  8. Z00.129
    Encounter for routine child health examination without abnormal findings
    BillableExempt
    Inclusion terms 1

    Inclusion terms

    • Encounter for routine child health examination NOS
  9. Z00.2
    Encounter for examination for period of rapid growth in childhood
    BillableExempt
  10. Z00.3
    Encounter for examination for adolescent development state
    BillableExempt
    Inclusion terms 1

    Inclusion terms

    • Encounter for puberty development state
  11. Z00.5
    Encounter for examination of potential donor of organ and tissue
    BillableExempt
  12. Z00.6
    Encounter for examination for normal comparison and control in clinical research program
    BillableExempt
    Inclusion terms 1

    Inclusion terms

    • Examination of participant or control in clinical research program
  13. Z00.7
    Encounter for examination for period of delayed growth in childhood
    Header
  14. Z00.70
    Encounter for examination for period of delayed growth in childhood without abnormal findings
    BillableExempt
  15. Z00.71
    Encounter for examination for period of delayed growth in childhood with abnormal findings
    BillableExempt
    Use additional code 1

    Use additional code

    • code to identify abnormal findings
  16. Z00.8
    Encounter for other general examination 1 billable code
    BillableExempt

Sources of each column.

Instructions

At Z00

Excludes1

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

Excludes2

  • encounter for pre-procedural examinations (Z01.81-) Z01.81
  • special screening examinations (Z11-Z13) Z11 Z13

Notes that also apply

Block Z00-Z13 instructions (Notes 1, Excludes2 1): printed on the block page.

Chapter 21 instructions (Notes 3): printed on the chapter 21 page.

Index entries

  • Puberty (development state) → Z00.3
  • Clinical research investigation (clinical trial) (control subject) (normal comparison) (participant) → Z00.6
  • Newborn (infant) (liveborn) (singleton)weight check → Z00.111
  • Examination (for) (following) (general) (of) (routine)child (over 28 days old) → Z00.129
  • Hearing examinationinfant or child (over 28 days old) → Z00.129
  • Screening (for)infant or child (over 28 days old) → Z00.129
  • Childhoodperiod of rapid growth → Z00.2
  • Evaluation (for) (of)growth and developmental state (period of rapid growth) → Z00.2
  • Examination (for) (following) (general) (of) (routine)period of rapid growth in childhood → Z00.2
  • Growth (fungoid) (neoplastic) (new)rapid, childhood → Z00.2
  • Examination (for) (following) (general) (of) (routine)adolescent (development state) → Z00.3
  • Donor (organ or tissue)potential, examination of → Z00.5
  • Examination (for) (following) (general) (of) (routine)donor (potential) → Z00.5
  • Admission (for)clinical research investigation (control) (normal comparison) (participant) → Z00.6
  • Examination (for) (following) (general) (of) (routine)clinical research control or normal comparison (control) (participant) → Z00.6
  • Investigationclinical research subject (control) (normal comparison) (participant) → Z00.6
  • Person (with)admitted for clinical research, as a control subject (normal comparison) (participant) → Z00.6
  • Newborn (infant) (liveborn) (singleton)examinationunder 8 days old → Z00.110
  • Newborn (infant) (liveborn) (singleton)examination8 to 28 days old → Z00.111
  • Examination (for) (following) (general) (of) (routine)child (over 28 days old)with abnormal findings → Z00.121
  • Hearing examinationinfant or child (over 28 days old)with abnormal findings → Z00.121
  • Screening (for)infant or child (over 28 days old)with abnormal findings → Z00.121
  • Admission (for)vision examinationinfant or child (over 28 days old) → Z00.129
  • Examination (for) (following) (general) (of) (routine)hearinginfant or child (over 28 days old) → Z00.129
  • Examination (for) (following) (general) (of) (routine)visioninfant or child (over 28 days old) → Z00.129
  • Immunizationappropriate for agechild (over 28 days old) → Z00.129
  • Test, tests, testing (for)hearinginfant or child (over 28 days old) → Z00.129
  • Test, tests, testing (for)visioninfant or child (over 28 days old) → Z00.129
  • Evaluation (for) (of)period ofrapid growth in childhood → Z00.2
  • Observation (following) (for) (without need for further medical care)development stateperiod of rapid growth in childhood → Z00.2
  • Evaluation (for) (of)development stateadolescent → Z00.3
  • Evaluation (for) (of)development statepuberty → Z00.3
  • Observation (following) (for) (without need for further medical care)development stateadolescent → Z00.3
  • Observation (following) (for) (without need for further medical care)development statepuberty → Z00.3
  • Admission (for)examination at health care facility (adult)donor (potential) → Z00.5
  • Examination (for) (following) (general) (of) (routine)medical (adult) (for) (of)donor (potential) → Z00.5
  • Admission (for)examination at health care facility (adult)clinical research investigation (control) (normal comparison) (participant) → Z00.6
  • Examination (for) (following) (general) (of) (routine)medical (adult) (for) (of)clinical research, normal subject (control) (participant) → Z00.6
  • Examination (for) (following) (general) (of) (routine)medical (adult) (for) (of)control subject in clinical research (normal comparison) (participant) → Z00.6
  • Evaluation (for) (of)growth and developmental state (period of rapid growth)delayed growth → Z00.70

16 more, longer entries are not listed; the search box finds them by word.

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy