ICD-10-PCS Code For Indwelling Device: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 3C1Z includes procedures performed to irrigate indwelling devices. These ICD-10-PCS codes are used for inpatient documentation when a clinician flushes or irrigates an indwelling device via an external approach to maintain function or address contamination. Accurate coding within the ICD-10-PCS 3C1Z group is essential for proper inpatient reimbursement, as it captures the procedure performed and supports clinical documentation accuracy.

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Indwelling Device Irrigation Procedure Overview

Procedures in this group involve irrigation of indwelling medical devices using an irrigating substance through an external approach. These procedures target indwelling devices rather than an anatomical body system and are performed to cleanse, flush, or maintain patency of the device. Accurate coding is important for inpatient reimbursement because it documents the specific device management performed and supports appropriate case mix assignment and payment.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
3	Section	Administration
C	Body System	Indwelling Device
1	Operation	Irrigation
Z	Body Part	None

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ICD-10-PCS Code For Indwelling Device: Procedure Code Group Overview

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Indwelling Device Irrigation Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
3	Section	Administration
C	Body System	Indwelling Device
1	Operation	Irrigation
Z	Body Part	None

When to Use

Use a code from this group when an indwelling device is irrigated externally with a solution to clear blockages, remove debris, or reduce contamination. Do not use these codes for device manipulation that does not include irrigation or for irrigation performed intraoperatively on anatomical structures.

ICD-10-PCS Codes

1 rows

ICD-10-PCS Code	Description
3C1ZX8Z	Irrigation of Indwelling Device using Irrigating Substance, External Approach

Typical Clinical Scenarios

An elderly hospitalized patient with a long-term urinary catheter develops decreased urine output and visible sediment in the drainage tubing after several days on diuretics; nursing notes show difficulty flushing the catheter and concern for obstruction. The team performs an external irrigation of the indwelling urinary catheter with sterile irrigating solution at the bedside to restore patency and obtain a urine specimen for culture. Typical codes: 3C1ZX8Z
A postoperative patient in the inpatient setting with a recently placed central venous port shows poor aspiration and slow infusion through the external port during routine assessment; the port is suspected to have fibrin sheath or medication precipitate. Interventional nursing performs an external irrigation/flush of the indwelling vascular access device using an appropriate irrigating substance to clear the lumen and re-establish function. Typical codes: 3C1ZX8Z
An inpatient on a medical ward with an indwelling nasogastric tube presents with clogged tubing after enteral feeds, causing feeding intolerance and risk of aspiration; bedside care includes external irrigation of the tube with irrigating solution to remove blockage and allow continued enteral nutrition. Typical codes: 3C1ZX8Z

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

1 rows

ICD-10-PCS Code	Description
3C1ZX8Z	Irrigation of Indwelling Device using Irrigating Substance, External Approach

Typical Clinical Scenarios

An elderly hospitalized patient with a long-term urinary catheter develops decreased urine output and visible sediment in the drainage tubing after several days on diuretics; nursing notes show difficulty flushing the catheter and concern for obstruction. The team performs an external irrigation of the indwelling urinary catheter with sterile irrigating solution at the bedside to restore patency and obtain a urine specimen for culture. Typical codes: 3C1ZX8Z
A postoperative patient in the inpatient setting with a recently placed central venous port shows poor aspiration and slow infusion through the external port during routine assessment; the port is suspected to have fibrin sheath or medication precipitate. Interventional nursing performs an external irrigation/flush of the indwelling vascular access device using an appropriate irrigating substance to clear the lumen and re-establish function. Typical codes: 3C1ZX8Z
An inpatient on a medical ward with an indwelling nasogastric tube presents with clogged tubing after enteral feeds, causing feeding intolerance and risk of aspiration; bedside care includes external irrigation of the tube with irrigating solution to remove blockage and allow continued enteral nutrition. Typical codes: 3C1ZX8Z

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 Indwelling Device: Procedure Code Group Overview

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Indwelling Device Irrigation Procedure Overview

Code Attributes

ICD-10-PCS Code For Indwelling Device: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Indwelling Device: Procedure Code Group Overview policy alerts

Indwelling Device Irrigation Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Which procedure is represented in the ICD-10-PCS 3C1Z code group?

What is the full ICD-10-PCS code listed in this procedure group?

In which ICD-10-PCS section and body system is this procedure classified?

Why is accurate coding of `3C1ZX8Z` important for inpatient care?

What approach is used for the procedures in the 3C1Z group?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Which procedure is represented in the ICD-10-PCS 3C1Z code group?

What is the full ICD-10-PCS code listed in this procedure group?

In which ICD-10-PCS section and body system is this procedure classified?

Why is accurate coding of `3C1ZX8Z` important for inpatient care?

What approach is used for the procedures in the 3C1Z group?

References