Billable / Specific Code
ICD-10-CM Z01.021 is the diagnosis code for Encounter for examination of eyes and vision following failed vision screening with abnormal findings. This code falls under the section "Persons encountering health services for examinations" within Chapter 21 — Factors influencing health status and contact with health services (Z00-Z99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where Z01.021 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, Z01.021 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Z01.021 is the ICD-10-CM diagnosis code for "Encounter for examination of eyes and vision following failed vision screening with abnormal findings". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of Z01.021 is Z01.02 ("Encounter for examination of eyes and vision following failed vision screening"). Z01.021 provides a more specific classification within this category.
Z01.021 is located in Section Z00-Z13 — "Persons encountering health services for examinations" within Chapter 21 of the ICD-10-CM Tabular List.
Use Z01.021 when the patients documented diagnosis matches "Encounter for examination of eyes and vision following failed vision screening with abnormal findings" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Encounter for examination of eyes and vision following failed vision screening with abnormal findings is Z01.021.
Yes, Z01.021 can be used as a primary diagnosis code since it is billable and specific.
Z01.021 is in Chapter 21 of the ICD-10-CM Tabular List.
Yes, Z01.021 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.