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Charge Capture & Coding

What Is CPT 96523 (Irrigation of an Implanted Venous Access Device)?

Also known as: Irrigation of an Implanted Venous Access Device

Quick answer

The CPT code for irrigating, or flushing, an implanted venous access device such as a port, when no other service is billed that day.

Written & reviewed by the Unlimited Systems Revenue Cycle TeamLast reviewed May 2026

Key takeaways

  • CPT 96523 is a charge capture & coding concept in healthcare revenue cycle management.
  • The CPT code for irrigating, or flushing, an implanted venous access device such as a port, when no other service is billed that day.
  • Drives first-pass clean-claim rate and revenue integrity

CPT 96523 explained

Port flushes between treatment cycles are common in oncology. 96523 is reported only when the flush is the sole service on the date.

When the port is used for an infusion or injection the same day, the flush is considered part of that service.

Where CPT 96523 fits in the revenue cycle

CPT 96523 sits within the middle of the revenue cycle, where clinical activity becomes a billable claim. It is part of charge capture and medical coding, translating documented care into the codes a payer will reimburse.

CPT 96523 is also referred to as Irrigation of an Implanted Venous Access Device. You'll encounter it on payer communications, billing reports, and in conversations between front-office, coding, and accounts-receivable teams.

Why CPT 96523 matters for your practice

Coding accuracy is where revenue integrity is won or lost. Missed charges leave money on the table; incorrect codes trigger denials, audits, and compliance risk. Clean, complete, correctly coded claims are the foundation of a high first-pass acceptance rate.

  • Converts documented clinical care into billable codes
  • Drives first-pass clean-claim rate and revenue integrity
  • Errors here cause denials, audits, and compliance exposure
  • Governed by CPT, HCPCS, ICD-10, and NCCI edit rules

CPT 96523 in practice

Knowing what CPT 96523 means is only useful if it changes what your team does. In a modern revenue cycle, that means catching issues related to charge Capture & Coding earlier, documenting and coding them correctly, and using technology to flag exceptions automatically rather than discovering them after a claim is denied.

This is exactly where a specialty-built revenue cycle platform earns its keep: by encoding the rules behind terms like CPT 96523 directly into the workflow, so clean claims go out the first time and your team works by exception instead of chasing problems after the fact.

CPT 96523: frequently asked questions

What is CPT 96523?

The CPT code for irrigating, or flushing, an implanted venous access device such as a port, when no other service is billed that day.

What does CPT 96523 mean in medical billing?

In medical billing, CPT 96523 falls under Charge Capture & Coding. It is part of charge capture and medical coding, translating documented care into the codes a payer will reimburse.

Why is CPT 96523 important in the revenue cycle?

Coding accuracy is where revenue integrity is won or lost. Missed charges leave money on the table; incorrect codes trigger denials, audits, and compliance risk. Clean, complete, correctly coded claims are the foundation of a high first-pass acceptance rate.

Is CPT 96523 known by any other names?

Yes, CPT 96523 is also referred to as Irrigation of an Implanted Venous Access Device.

Authoritative sources

For the most current rules and requirements, consult the primary sources that govern this area of healthcare billing:

Unlimited Systems Revenue Cycle Team
RCM & medical billing specialists

Unlimited Systems has built specialty revenue cycle technology for healthcare providers for two decades. This glossary is maintained by our in-house team of billing, coding, and reimbursement specialists.

Put CPT 96523 to work in your practice

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