Encounter for general examination without complaint, suspected or reported diagnosis (Z00) ICD-10-CM
The Z00 code range covers encounter for general examination without complaint, suspected or reported diagnosis with 19 ICD-10-CM diagnosis codes. 13 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- encounter for examination for administrative purposes Z02
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Codes in the Z00 Range 19 codes · 13 billable
- Z00 Encounter for general examination without complaint, suspected or reported diagnosisNon-billable
- Z00.0 Encounter for general adult medical examinationNon-billable
- Z00.00 Encounter for general adult medical examination without abnormal findings
- Z00.01 Encounter for general adult medical examination with abnormal findings
- Z00.1 Encounter for newborn, infant and child health examinationsNon-billable
- Z00.11 Newborn health examinationNon-billable
- Z00.110 Health examination for newborn under 8 days old
- Z00.111 Health examination for newborn 8 to 28 days old
- Z00.12 Encounter for routine child health examinationNon-billable
- 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
- Z00.7 Encounter for examination for period of delayed growth in childhoodNon-billable
- 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
- Z00.8 Encounter for other general examination
About the Z00 Code Range
The Z00 ICD-10 codes are used for documenting general health examinations when there is no complaint, suspected, or reported diagnosis. These codes cover a wide range of routine check-ups for adults, children, and newborns, as well as specialized exams for organ donation eligibility and growth assessments in children.
The Z00.0 series pertains to general adult medical exams, including routine check-ups both with and without abnormal findings, sometimes called "complete examinations despite inadequate preparation" or "abnormal wellness exams." Child and newborn examinations fall under Z00.1 codes, covering specific well-child visits by age, such as newborn exams within the first 28 days (Child examination at birth with explicit context) and routine child health exams, with distinct codes for normal or abnormal results. Growth and development assessments are covered by Z00.2 and Z00.3, addressing periods of rapid growth and adolescent development. For organ and tissue donation screenings, Z00.5 codes document eligibility and willingness to donate organs like kidney or liver. Other types of general examinations, including annual physicals for patients with mental illness, are recorded with Z00.8. Understanding these codes helps accurately capture preventative care and health status checks across the lifespan.
Questions About This Page
How many billable codes are in the Z00 range?
Of the 19 codes in this range, 13 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the Z00 range classify?
The range classifies encounter for general examination without complaint, suspected or reported diagnosis. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
