Persons encountering health services for examinations (Z00-Z13) ICD-10-CM
The Z00–Z13 section covers persons encountering health services for examinations with 206 ICD-10-CM diagnosis codes, of which 156 are billable in fiscal year 2026. The section is organized into the 11 code ranges listed below.
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.
Code Ranges in This Section 11 ranges · 206 codes
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the Z00–Z13 Code Range
ICD-10 codes Z00-Z13 are used for encounters when individuals receive health examinations or screenings without presenting active complaints or confirmed diagnoses. These codes cover routine check-ups for various age groups, special examinations, administrative evaluations, and screenings for infectious diseases, cancers, and other conditions.
The Z00 category includes general medical exams, such as the complete adult exam (Z00.00) including those with or without abnormal findings (Z00.01), as well as newborn and child health checks (Z00.1 series) covering routine and abnormal findings. Codes like Z01 specify special examinations, such as eye and vision exams (Z01.0), hearing checks (Z01.1), dental cleanings (Z01.2), and gynecological exams (Z01.4), with subcodes identifying normal or abnormal findings. The range also includes Z02 for administrative exams like pre-employment or driving license screenings. Observation codes (Z03-Z05) cover suspected conditions ruled out through evaluation, including newborn conditions. Follow-up exams after treatment for cancer or other diseases fall under Z08-Z09. The Z11-Z13 series focuses on screenings for infectious and parasitic diseases, malignant neoplasms (e.g., breast or cervical cancer screening under Z12.3, Z12.4), and screenings for other disorders, including blood diseases, diabetes, mental health, developmental delays, and cardiovascular conditions. Using synonyms like "abnormal wellness exam" for Z00.01 or "screening mammogram" for Z12.31 helps coders match clinical terms to the precise codes.
Questions About This Page
How many codes are in the Z00-Z13 range?
The Z00-Z13 range contains 206 ICD-10-CM diagnosis codes in FY 2026. 156 of them are billable, and the rest are category headers that organize the section.
What conditions does Z00-Z13 cover?
The range covers persons encountering health services for examinations. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
