ICD-10-PCS Code for Eye, Left: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 0821 includes procedures performed to change devices in the left eye. These ICD-10-PCS codes are used for inpatient documentation when an implanted or external device on the left eye is removed and an identical or similar device is put back in or on the same left eye without cutting or puncturing the skin or a mucous membrane. Accurate coding within the ICD-10-PCS 0821 group is essential for proper inpatient reimbursement, as it captures the procedure performed and determines appropriate case mix and payment.

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Eye, Left Change Procedure Overview

This procedure group includes codes for changing an implanted or external device on the left eye without cutting or puncturing the skin or a mucous membrane. These procedures target the eye body system and involve removing and replacing an identical or similar device on the left eye. Accurate coding is important for reflecting the procedure performed and for appropriate inpatient reimbursement and case mix assignment.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
8	Body System	Eye
2	Operation	Change
1	Body Part	Eye, Left

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ICD-10-PCS Code for Eye, Left: Procedure Code Group Overview

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Eye, Left Change Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
8	Body System	Eye
2	Operation	Change
1	Body Part	Eye, Left

When to Use

Use codes from this group when an implanted or external device on the left eye is changed and the procedure is performed without incision or puncture of the skin or a mucous membrane. These codes apply only to inpatient settings where documentation supports removal and replacement of the device on the left eye using the change root operation.

ICD-10-PCS Codes

2 rows

ICD-10-PCS Code	Description
0821X0Z	Change Drainage Device in Left Eye, External Approach
0821XYZ	Change Other Device in Left Eye, External Approach

Typical Clinical Scenarios

An elderly patient is admitted with a malfunctioning external drainage device (e.g., a temporary conjunctival drainage tube) placed for post‑operative ocular fluid management that has become occluded and is not draining. Because the device cannot be cleared at bedside and continued drainage is required to protect intraocular pressure and vision, the device is removed and an identical external drainage device is placed on the left eye without incision or puncture. The change procedure is performed in the inpatient setting to restore proper ocular drainage. Typical codes: 0821X0Z
A middle‑aged patient presents emergently after blunt trauma to the left eye causing displacement of an externally worn ocular prosthetic valve assembly used for surface protection; the device is painful and malpositioned. In the hospital, clinicians remove the displaced external device and replace it with an identical external protective device on the left eye without cutting or puncturing the skin or mucous membranes to restore proper fit and protect the globe. Typical codes: 0821XYZ
A hospitalized patient who previously had an external ocular device placed develops recurrent surface irritation and pressure necrosis from device contact. To address the complication while preserving ocular surface integrity, the external device is removed and a similar external device with a different fit is placed on the left eye without incision or puncture. The change is performed during the inpatient stay to manage the complication and prevent further tissue injury. Typical codes: 0821XYZ

Related Codes

0820-EYE-RIGHT-CHANGE

ICD-10-PCS Code For Eye Right: Procedure Code Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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When to Use

ICD-10-PCS Codes

2 rows

ICD-10-PCS Code	Description
0821X0Z	Change Drainage Device in Left Eye, External Approach
0821XYZ	Change Other Device in Left Eye, External Approach

Typical Clinical Scenarios

An elderly patient is admitted with a malfunctioning external drainage device (e.g., a temporary conjunctival drainage tube) placed for post‑operative ocular fluid management that has become occluded and is not draining. Because the device cannot be cleared at bedside and continued drainage is required to protect intraocular pressure and vision, the device is removed and an identical external drainage device is placed on the left eye without incision or puncture. The change procedure is performed in the inpatient setting to restore proper ocular drainage. Typical codes: 0821X0Z
A middle‑aged patient presents emergently after blunt trauma to the left eye causing displacement of an externally worn ocular prosthetic valve assembly used for surface protection; the device is painful and malpositioned. In the hospital, clinicians remove the displaced external device and replace it with an identical external protective device on the left eye without cutting or puncturing the skin or mucous membranes to restore proper fit and protect the globe. Typical codes: 0821XYZ
A hospitalized patient who previously had an external ocular device placed develops recurrent surface irritation and pressure necrosis from device contact. To address the complication while preserving ocular surface integrity, the external device is removed and a similar external device with a different fit is placed on the left eye without incision or puncture. The change is performed during the inpatient stay to manage the complication and prevent further tissue injury. Typical codes: 0821XYZ

Related Codes

0820-EYE-RIGHT-CHANGE

ICD-10-PCS Code For Eye Right: Procedure Code Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-PCS Code for Eye, Left: Procedure Code Group Overview

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Eye, Left Change Procedure Overview

Code Attributes

ICD-10-PCS Code for Eye, Left: Procedure Code Group Overview

Sign up for ICD-10-PCS Code for Eye, Left: Procedure Code Group Overview policy alerts

Eye, Left Change Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What procedures are included in the ICD-10-PCS 0821 group?

What is the primary purpose of coding within the ICD-10-PCS 0821 group?

What are the code attributes for the 0821 procedure group?

Which specific codes are listed in the 0821 group?

Are there related DRGs available for this procedure group?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What procedures are included in the ICD-10-PCS 0821 group?

What is the primary purpose of coding within the ICD-10-PCS 0821 group?

What are the code attributes for the 0821 procedure group?

Which specific codes are listed in the 0821 group?

Are there related DRGs available for this procedure group?

References