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CPT 96548: HIPEC Additional 30 Minutes Intraoperative Perfusion

CPT code 96548 designates an additional 30 minutes of intraoperative hyperthermic intraperitoneal chemotherapy (HIPEC) delivered after a first 60 minutes of perfusion. This time-based add-on code captures extended perfusion time during a surgical procedure and is relevant for care of patients with peritoneal malignancies where heated intraperitoneal chemotherapy is used intraoperatively. Nationally, correct use of this code affects facility and professional billing for complex oncologic surgical procedures and can influence resource accounting for operating room time and chemotherapy delivery.

Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of clinical context for HIPEC, the service setting and procedural implications, and an outline of common modifiers used with this type of time-based intraoperative service. The content highlights benchmarks for utilization, typical billing considerations, and recent policy or coding clarifications where available.

This summary is intended to orient billing staff, surgical teams, and revenue cycle professionals to the purpose of CPT code 96548, the clinical scenario it represents, and the payer landscape affecting reimbursement and documentation practices. Data not available in the input will be noted where applicable.

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Billing Code Overview

CPT code 96548 describes an additional 30 minutes of intraoperative hyperthermic intraperitoneal chemotherapy (HIPEC) delivered after an initial 60 minutes. The service is the perfusion of a heated chemotherapy agent into the abdominal cavity through catheters during an operation.

Service type: Intraoperative chemotherapy perfusion (HIPEC), extended time

Typical site of service: Operating room / inpatient surgical setting

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CPT 96548: HIPEC Additional 30 Minutes Intraoperative Perfusion

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Billing Code Overview

Service type: Intraoperative chemotherapy perfusion (HIPEC), extended time

Typical site of service: Operating room / inpatient surgical setting

Clinical & Coding Specifications

Clinical Context

A 58-year-old patient with recurrent appendiceal mucinous neoplasm and peritoneal carcinomatosis is taken to the operating room for cytoreductive surgery followed by hyperthermic intraperitoneal chemotherapy (HIPEC). After the surgical oncologist performs cytoreduction and completes the initial HIPEC perfusion for 60 minutes, an additional 30 minutes of perfusion is required due to operative judgment for improved drug exposure and residual microscopic disease. The perfusion is delivered through abdominal catheters with the perfusate heated to therapeutic temperatures; the anesthesia team manages physiologic parameters and the perfusionist monitors flow and temperature. Post-perfusion, the abdomen is irrigated, catheters are removed, and the patient is transferred to the intensive care unit for close monitoring of hemodynamics, fluid shifts, and potential organ dysfunction.

Coding Specifications

Modifier	Description	When to Use
`00`	No modifier used	Standard reporting when no special circumstances apply
`22`	Increased procedural services	Use when work required is substantially greater than typical due to complexity during HIPEC
`26`	Professional component	Use when only the physician professional component is billed separate from technical facility services
`52`	Reduced services	Use when HIPEC perfusion was partially reduced or abbreviated
`53`	Discontinued procedure	Use when the procedure was started but terminated for patient safety before completion
`54`	Surgical care only	Use when the surgeon bills only the intraoperative service and another provider bills postoperative care
`55`	Postoperative management only	Use when billing only postoperative care after another surgeon performed the operation
`62`	Two surgeons	Use when two surgeons of different specialties shared responsibility for the case
`66`	Surgical team	Use when a surgical team approach is used for extensive cytoreduction with HIPEC
`78`	Return to OR for related procedure during global period	Use when the patient returns to the operating room for a related, unplanned procedure after the initial HIPEC
`80`	Assistant surgeon	Use when an assistant surgeon provided assistance during the operation
`82`	Assistant surgeon (when qualified resident not available)	Use when a qualified resident is not available and an assistant surgeon is required
`AS`	Physician assistant, nurse practitioner, or clinical nurse specialist	Use when an APP performed part of the service within allowed scope
`TC`	Technical component	Use when billing only the technical component (facility/equipment) of the perfusion

Taxonomy Code	Specialty	Notes
`208100000X`	General Surgery	Surgical oncologists or general surgeons performing cytoreduction with HIPEC
`2080S0126X`	Surgical Oncology	Specialists who commonly perform cytoreductive surgery and HIPEC
`207L00000X`	Anesthesiology	Anesthesiologists managing intraoperative physiology during HIPEC
`333600000X`	Critical Care Medicine	Intensivists providing postoperative ICU management after HIPEC
`364S00000X`	Perfusionist (Clinical Perfusion)	Perfusion specialists who may manage extracorporeal heating/flow systems

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`C78.6`	Secondary malignant neoplasm of retroperitoneum and peritoneum	Peritoneal metastases often indicate need for cytoreductive surgery with HIPEC
`C16.9`	Malignant neoplasm of stomach, unspecified	Gastric cancers can seed the peritoneum and be treated with HIPEC in select cases
`C18.9`	Malignant neoplasm of colon, unspecified	Colorectal primaries may cause peritoneal carcinomatosis treated with HIPEC
`C48.2`	Malignant neoplasm of peritoneum	Primary peritoneal malignancy that can be managed with cytoreduction and HIPEC
`C80.1`	Malignant (primary) neoplasm, unspecified	Advanced intra-abdominal malignancy where HIPEC may be considered

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`41400`	Repair of nasal or oral structures — Data not available in the input.	Data not available in the input.
`96409`	Chemotherapy administration; intra-arterial, percutaneous, pharmacologic, or via perfusion pump — Data not available in the input.	Data not available in the input.
`58150`	Total abdominal hysterectomy (when performed as part of cytoreductive procedure) — Data not available in the input.	Data not available in the input.

CPT 96440: Intracavitary Chemotherapy Administration to Pleural Space

CPT-96446-INTRAPERITONEAL-CHEMOTHERAPY-VIA-IMPLANTED-PORT

CPT 96446: Intraperitoneal Chemotherapy via Implanted Port

CPT-96450-INTRATHECAL-CHEMOTHERAPY-LUMBAR-PUNCTURE

CPT 96450: Intrathecal Chemotherapy with Lumbar Puncture

CPT-96521-CHEMOTHERAPY-PORTABLE-PUMP-REFILL

CPT 96521: Refill of Portable Chemotherapy Pump

CPT-96522-IMPLANTABLE-DRUG-RESERVOIR-REFILL-PUMP-CHECK

CPT 96522: Implantable Drug Reservoir Refill and Pump Function Check

CPT-96523-VENOUS-ACCESS-DEVICE-IRRIGATION-FLUSH

CPT 96523: Irrigation/Flush of Venous Access Device

CPT-96542-CHEMOTHERAPY-VIA-INTRAVENTRICULAR-OR-SUBCUTANEOUS-RESERVOIR

CPT 96542: Chemotherapy via Intraventricular or Subcutaneous Reservoir

CPT-96547-HIPEC-INTRAOPERATIVE-PERFUSION-FIRST-60-MINUTES

CPT 96547: Intraoperative HIPEC Perfusion, First 60 Minutes

CPT-96549-UNLISTED-CHEMOTHERAPY-ADMINISTRATION

CPT 96549: Unlisted Chemotherapy Administration Procedure

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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Clinical & Coding Specifications

Clinical Context

Coding Specifications

Modifier	Description	When to Use
`00`	No modifier used	Standard reporting when no special circumstances apply
`22`	Increased procedural services	Use when work required is substantially greater than typical due to complexity during HIPEC
`26`	Professional component	Use when only the physician professional component is billed separate from technical facility services
`52`	Reduced services	Use when HIPEC perfusion was partially reduced or abbreviated
`53`	Discontinued procedure	Use when the procedure was started but terminated for patient safety before completion
`54`	Surgical care only	Use when the surgeon bills only the intraoperative service and another provider bills postoperative care
`55`	Postoperative management only	Use when billing only postoperative care after another surgeon performed the operation
`62`	Two surgeons	Use when two surgeons of different specialties shared responsibility for the case
`66`	Surgical team	Use when a surgical team approach is used for extensive cytoreduction with HIPEC
`78`	Return to OR for related procedure during global period	Use when the patient returns to the operating room for a related, unplanned procedure after the initial HIPEC
`80`	Assistant surgeon	Use when an assistant surgeon provided assistance during the operation
`82`	Assistant surgeon (when qualified resident not available)	Use when a qualified resident is not available and an assistant surgeon is required
`AS`	Physician assistant, nurse practitioner, or clinical nurse specialist	Use when an APP performed part of the service within allowed scope
`TC`	Technical component	Use when billing only the technical component (facility/equipment) of the perfusion

Taxonomy Code	Specialty	Notes
`208100000X`	General Surgery	Surgical oncologists or general surgeons performing cytoreduction with HIPEC
`2080S0126X`	Surgical Oncology	Specialists who commonly perform cytoreductive surgery and HIPEC
`207L00000X`	Anesthesiology	Anesthesiologists managing intraoperative physiology during HIPEC
`333600000X`	Critical Care Medicine	Intensivists providing postoperative ICU management after HIPEC
`364S00000X`	Perfusionist (Clinical Perfusion)	Perfusion specialists who may manage extracorporeal heating/flow systems

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`C78.6`	Secondary malignant neoplasm of retroperitoneum and peritoneum	Peritoneal metastases often indicate need for cytoreductive surgery with HIPEC
`C16.9`	Malignant neoplasm of stomach, unspecified	Gastric cancers can seed the peritoneum and be treated with HIPEC in select cases
`C18.9`	Malignant neoplasm of colon, unspecified	Colorectal primaries may cause peritoneal carcinomatosis treated with HIPEC
`C48.2`	Malignant neoplasm of peritoneum	Primary peritoneal malignancy that can be managed with cytoreduction and HIPEC
`C80.1`	Malignant (primary) neoplasm, unspecified	Advanced intra-abdominal malignancy where HIPEC may be considered

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`41400`	Repair of nasal or oral structures — Data not available in the input.	Data not available in the input.
`96409`	Chemotherapy administration; intra-arterial, percutaneous, pharmacologic, or via perfusion pump — Data not available in the input.	Data not available in the input.
`58150`	Total abdominal hysterectomy (when performed as part of cytoreductive procedure) — Data not available in the input.	Data not available in the input.

CPT 96440: Intracavitary Chemotherapy Administration to Pleural Space

CPT-96446-INTRAPERITONEAL-CHEMOTHERAPY-VIA-IMPLANTED-PORT

CPT 96446: Intraperitoneal Chemotherapy via Implanted Port

CPT-96450-INTRATHECAL-CHEMOTHERAPY-LUMBAR-PUNCTURE

CPT 96450: Intrathecal Chemotherapy with Lumbar Puncture

CPT-96521-CHEMOTHERAPY-PORTABLE-PUMP-REFILL

CPT 96521: Refill of Portable Chemotherapy Pump

CPT-96522-IMPLANTABLE-DRUG-RESERVOIR-REFILL-PUMP-CHECK

CPT 96522: Implantable Drug Reservoir Refill and Pump Function Check

CPT-96523-VENOUS-ACCESS-DEVICE-IRRIGATION-FLUSH

CPT 96523: Irrigation/Flush of Venous Access Device

CPT-96542-CHEMOTHERAPY-VIA-INTRAVENTRICULAR-OR-SUBCUTANEOUS-RESERVOIR

CPT 96542: Chemotherapy via Intraventricular or Subcutaneous Reservoir

CPT-96547-HIPEC-INTRAOPERATIVE-PERFUSION-FIRST-60-MINUTES

CPT 96547: Intraoperative HIPEC Perfusion, First 60 Minutes

CPT-96549-UNLISTED-CHEMOTHERAPY-ADMINISTRATION

CPT 96549: Unlisted Chemotherapy Administration Procedure

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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CPT 96548: HIPEC Additional 30 Minutes Intraoperative Perfusion

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Billing Code Overview

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CPT 96548: HIPEC Additional 30 Minutes Intraoperative Perfusion

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Billing Code Overview

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

References

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

References