ICD-10-CM 2027
ICD-10 code for examination vision
From the official ICD-10-CM alphabetic index entry “Vision, visual › examination”. Page updated September 29, 2026.
About coding examination vision
The ICD-10-CM code for examination vision is Z01.00 (Encounter for examination of eyes and vision without abnormal findings). The official index lists 3 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on Z01.00.
Within Z01.0, choose Z01.00 (without abnormal findings) only when documentation doesn't support a more specific option: with abnormal findings (Z01.01) and following failed vision screening (Z01.02).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 951 (Other Factors Influencing Health Status, relative weight 0.5577), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific examination vision codes (official index)
- with abnormal findings Z01.01 — Encounter for examination of eyes and vision with abnormal findings
- following failed vision screening Z01.020 — Encounter for examination of eyes and vision following failed vision screening without abnormal findings
- with abnormal findings Z01.021 — Encounter for examination of eyes and vision following failed vision screening with abnormal findings
Common questions about examination vision ICD-10 codes
What is the ICD-10 code for examination vision?
- Z01.00 — Encounter for examination of eyes and vision without abnormal findings. More specific codes apply when the documentation supports them: Z01.01, Z01.020, Z01.021.
Is Z01.00 billable?
- Yes. Z01.00 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z01.00 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Z01.00 as a principal diagnosis.
Is Z01.00 a CC or MCC?
- No. Z01.00 is neither a CC nor an MCC under MS-DRG v44.0.