ICD-10-CM
ICD-10 code for Preoperative examination: Z01.818
The closest CDC title for "Preoperative examination" is Z01.818, Encounter for other preprocedural examination. Z01.818 is a billable code.
Source: CDC ICD-10-CM FY2027 order file dated June 16, 2026. Publisher page
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Codes under Z01, then other CDC titles that name encounter for other preprocedural examination
A header groups codes and is not billed. A billable code is one you can report.
- Z01Encounter for other special examination without complaint, suspected or reported diagnosisHeader
- Z01.0Encounter for examination of eyes and visionHeader
- Z01.00Encounter for examination of eyes and vision without abnormal findingsBillable
- Z01.01Encounter for examination of eyes and vision with abnormal findingsBillable
- Z01.02Encounter for examination of eyes and vision following failed vision screeningHeader
- Z01.020Encounter for examination of eyes and vision following failed vision screening without abnormal findingsBillable
- Z01.021Encounter for examination of eyes and vision following failed vision screening with abnormal findingsBillable
- Z01.1Encounter for examination of ears and hearingHeader
- Z01.10Encounter for examination of ears and hearing without abnormal findingsBillable
- Z01.11Encounter for examination of ears and hearing with abnormal findingsHeader
- Z01.110Encounter for hearing examination following failed hearing screeningBillable
- Z01.118Encounter for examination of ears and hearing with other abnormal findingsBillable
- Z01.12Encounter for hearing conservation and treatmentBillable
- Z01.2Encounter for dental examination and cleaningHeader
- Z01.20Encounter for dental examination and cleaning without abnormal findingsBillable
- Z01.21Encounter for dental examination and cleaning with abnormal findingsBillable
- Z01.3Encounter for examination of blood pressureHeader
- Z01.30Encounter for examination of blood pressure without abnormal findingsBillable
- Z01.31Encounter for examination of blood pressure with abnormal findingsBillable
- Z01.4Encounter for gynecological examinationHeader
- Z01.41Encounter for routine gynecological examinationHeader
- Z01.411Encounter for gynecological examination (general) (routine) with abnormal findingsBillable
- Z01.419Encounter for gynecological examination (general) (routine) without abnormal findingsBillable
- Z01.42Encounter for cervical smear to confirm findings of recent normal smear following initial abnormal smearBillable
- Z01.8Encounter for other specified special examinationsHeader
- Z01.81Encounter for preprocedural examinationsHeader
- Z01.810Encounter for preprocedural cardiovascular examinationBillable
- Z01.811Encounter for preprocedural respiratory examinationBillable
- Z01.812Encounter for preprocedural laboratory examinationBillable
- Z01.818Encounter for other preprocedural examinationBillable
- Z01.82Encounter for allergy testingBillable
- Z01.83Encounter for blood typingBillable
- Z01.84Encounter for antibody response examinationBillable
- Z01.89Encounter for other specified special examinationsBillable
Excludes1
Excludes1 means these codes are not reported together.
From Z01. A note on a category applies to every code under it.
- Z02.-Encounter for examination for administrative purposes
- Z03.-Encounter for examination for suspected conditions, proven not to exist
- encounter for laboratory, radiologic and imaging examinations for sign(s) and symptom(s) - code to the sign(s) or symptom(s)
Excludes2
Excludes2 means the other condition can be reported with this one when both are documented.
From Z01. A note on a category applies to every code under it.
Related conditions
Related pages
- Z01.818 code detailsNotes, nearby codes, CMS-HCC group
- Category Z01Every code under it
- Chapter 21Factors influencing health status
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Preoperative examination?
The closest CDC title for "Preoperative examination" is Z01.818, Encounter for other preprocedural examination. Z01.818 is a billable code.
Is Z01.818 billable?
Yes. Z01.818 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to Z01.818?
The CDC tabular list gives 3 Excludes1 notes (not coded together), 2 Excludes2 notes (may be coded together when both are documented) for Z01.818 and the categories above it. They are listed on this page.
What chapter is Z01.818 in?
Chapter 21. Factors influencing health status.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.