Encounter for other special examination without complaint, suspected or reported diagnosis (Z01) ICD-10-CM
The Z01 code range covers encounter for other special examination without complaint, suspected or reported diagnosis with 34 ICD-10-CM diagnosis codes. 23 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- routine examination of specific system
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
- encounter for examination for suspected conditions, proven not to exist Z03
- encounter for laboratory, radiologic and imaging examinations for sign(s) and symptom(s) - code to the sign(s) or symptom(s)
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.
- encounter for laboratory and radiologic examinations as a component of general medical examinations Z00.0
- screening examinations Z11 Z13
- Codes from category Z01 represent the reason for the encounter. A separate procedure code is required to identify any examinations or procedures performed
Codes in the Z01 Range 34 codes · 23 billable
- Z01 Encounter for other special examination without complaint, suspected or reported diagnosisNon-billable
- Z01.0 Encounter for examination of eyes and visionNon-billable
- Z01.00 Encounter for examination of eyes and vision without abnormal findings
- Z01.01 Encounter for examination of eyes and vision with abnormal findings
- Z01.02 Encounter for examination of eyes and vision following failed vision screeningNon-billable
- Z01.020 Encounter for examination of eyes and vision following failed vision screening without abnormal findings
- Z01.021 Encounter for examination of eyes and vision following failed vision screening with abnormal findings
- Z01.1 Encounter for examination of ears and hearingNon-billable
- Z01.10 Encounter for examination of ears and hearing without abnormal findings
- Z01.11 Encounter for examination of ears and hearing with abnormal findingsNon-billable
- Z01.110 Encounter for hearing examination following failed hearing screening
- Z01.118 Encounter for examination of ears and hearing with other abnormal findings
- Z01.12 Encounter for hearing conservation and treatment
- Z01.2 Encounter for dental examination and cleaningNon-billable
- Z01.20 Encounter for dental examination and cleaning without abnormal findings
- Z01.21 Encounter for dental examination and cleaning with abnormal findings
- Z01.3 Encounter for examination of blood pressureNon-billable
- Z01.30 Encounter for examination of blood pressure without abnormal findings
- Z01.31 Encounter for examination of blood pressure with abnormal findings
- Z01.4 Encounter for gynecological examinationNon-billable
- Z01.41 Encounter for routine gynecological examinationNon-billable
- Z01.411 Encounter for gynecological examination (general) (routine) with abnormal findings
- Z01.419 Encounter for gynecological examination (general) (routine) without abnormal findings
- Z01.42 Encounter for cervical smear to confirm findings of recent normal smear following initial abnormal smear
- Z01.8 Encounter for other specified special examinationsNon-billable
- Z01.81 Encounter for preprocedural examinationsNon-billable
- Z01.810 Encounter for preprocedural cardiovascular examination
- Z01.811 Encounter for preprocedural respiratory examination
- Z01.812 Encounter for preprocedural laboratory examination
- Z01.818 Encounter for other preprocedural examination
- Z01.82 Encounter for allergy testing
- Z01.83 Encounter for blood typing
- Z01.84 Encounter for antibody response examination
- Z01.89 Encounter for other specified special examinations
About the Z01 Code Range
The ICD-10 code Z01 series is used to classify encounters for special examinations performed without any reported complaints or suspected diagnoses. These codes cover a wide range of routine, screening, and preprocedural exams focusing on specific body systems such as eyes, ears, dental health, blood pressure, gynecological health, and other specialized tests.
This set of codes includes detailed entries like Z01.0 for eye and vision exams, differentiating between normal findings (e.g., confrontation visual test, endothelial cell morphometry) and abnormal results (such as an absent red reflex). Hearing evaluations are coded under Z01.1, which covers normal auditory tests as well as exams following failed hearing screenings. Dental encounters have codes like Z01.2, distinguishing between cleanings without issues and those noting susceptibility to caries. Gynecological exams, including routine screenings and smears confirming prior abnormalities, are represented by codes starting with Z01.4. The section also contains preprocedural exam codes (Z01.81) for cardiovascular and respiratory assessments and allergy testing (Z01.82). For those searching for the ICD-10 code for blood typing or antibody response examinations, Z01.83 and Z01.84 provide the specific options.
Questions About This Page
How many billable codes are in the Z01 range?
Of the 34 codes in this range, 23 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 Z01 range classify?
The range classifies encounter for other special 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.
