ICD-10-PCS Code For Venous: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 4A04 includes procedures performed to measure physiological function in the venous system. These ICD-10-PCS codes are used for inpatient documentation when clinicians perform venous monitoring or diagnostic measurement of electrical activity or other venous physiological parameters. Accurate coding within the ICD-10-PCS 4A04 group is essential for proper inpatient reimbursement, as it captures the procedures performed and supports clinical documentation accuracy.

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Venous Measurement Procedure Overview

Procedures in this group involve measurement and monitoring of venous physiological function, capturing electrical activity and other physiologic parameters from the venous system. These measurements target the physiological systems body system and are performed to determine the level of venous function at a point in time. Accurate ICD-10-PCS coding of these measurements supports proper inpatient documentation and helps ensure appropriate case mix assignment for reimbursement.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
4	Section	Measurement and Monitoring
A	Body System	Physiological Systems
0	Operation	Measurement
4	Body Part	Venous

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ICD-10-PCS Code For Venous: Procedure Code Group Overview

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Venous Measurement Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
4	Section	Measurement and Monitoring
A	Body System	Physiological Systems
0	Operation	Measurement
4	Body Part	Venous

When to Use

Use a code from this group when a clinician performs a measurement or monitoring procedure to assess venous physiological or electrical activity during an inpatient stay. These codes apply when the primary purpose of the procedure is to record the venous function at a specific point in time for diagnostic or monitoring purposes.

ICD-10-PCS Codes

31 rows

ICD-10-PCS Code	Description
4A04050	Measurement of Venous Flow, Central, Open Approach
4A04051	Measurement of Venous Flow, Peripheral, Open Approach
4A04052	Measurement of Venous Flow, Portal, Open Approach
4A04053	Measurement of Venous Flow, Pulmonary, Open Approach
4A040B0	Measurement of Venous Pressure, Central, Open Approach
4A040B1	Measurement of Venous Pressure, Peripheral, Open Approach
4A040B2	Measurement of Venous Pressure, Portal, Open Approach
4A040B3	Measurement of Venous Pressure, Pulmonary, Open Approach
4A040J0	Measurement of Venous Pulse, Central, Open Approach
4A040J1	Measurement of Venous Pulse, Peripheral, Open Approach

Showing 1–10 of 31

Typical Clinical Scenarios

An elderly patient is admitted to the intensive care unit with septic shock and multi-organ dysfunction requiring central venous access for hemodynamic monitoring. The critical care team performs invasive measurement of central venous pressure via an existing central venous catheter to guide fluid resuscitation and vasopressor management. This single-point physiologic measurement documents venous pressure to inform acute management decisions during the inpatient stay. Typical codes: 4A043B0
A patient with chronic liver disease is admitted electively for transjugular intrahepatic portal pressure assessment as part of preoperative evaluation for portal hypertension management. During the planned inpatient procedure, clinicians percutaneously measure portal venous pressure to quantify portal hypertension severity and to plan subsequent therapeutic interventions. The recorded pressure measurement is a diagnostic physiologic assessment performed at a specific time point. Typical codes: 4A043B2
A postoperative patient on the surgical ward develops new peripheral limb swelling and concern for deep venous thrombosis; bedside evaluation includes percutaneous measurement of peripheral venous flow to assess for venous obstruction and guide further imaging or anticoagulation decisions. The focused measurement captures venous flow from a peripheral venous site during the inpatient stay to evaluate a possible complication following surgery. Typical codes: 4A04351

Related Codes

4A00-CENTRAL-NERVOUS-MEASUREMENT

ICD-10-PCS Code For Central Nervous: Procedure Code Group Overview

4A01-PERIPHERAL-NERVOUS-MEASUREMENT

ICD-10-PCS Code For Peripheral Nervous: Procedure Code Group Overview

4A02-CARDIAC-MEASUREMENT

ICD-10-PCS Code For Cardiac: Procedure Code Group Overview

4A03-ARTERIAL-MEASUREMENT

ICD-10-PCS Code For Arterial: Procedure Code Group Overview

4A05-CIRCULATORY-MEASUREMENT

ICD-10-PCS Code For Circulatory: Procedure Code Group Overview

4A06-LYMPHATIC-MEASUREMENT

ICD-10-PCS Code For Lymphatic: Procedure Code Group Overview

4A07-VISUAL-MEASUREMENT

ICD-10-PCS Code For Visual: Procedure Code Group Overview

4A08-OLFACTORY-MEASUREMENT

ICD-10-PCS Code For Olfactory: Procedure Code Group Overview

4A09-RESPIRATORY-MEASUREMENT

ICD-10-PCS Code For Respiratory: Procedure Code Group Overview

4A0B-GASTROINTESTINAL-MEASUREMENT

ICD-10-PCS Code For Gastrointestinal: Procedure Code Group Overview

Showing 1–10 of 16

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

31 rows

ICD-10-PCS Code	Description
4A04050	Measurement of Venous Flow, Central, Open Approach
4A04051	Measurement of Venous Flow, Peripheral, Open Approach
4A04052	Measurement of Venous Flow, Portal, Open Approach
4A04053	Measurement of Venous Flow, Pulmonary, Open Approach
4A040B0	Measurement of Venous Pressure, Central, Open Approach
4A040B1	Measurement of Venous Pressure, Peripheral, Open Approach
4A040B2	Measurement of Venous Pressure, Portal, Open Approach
4A040B3	Measurement of Venous Pressure, Pulmonary, Open Approach
4A040J0	Measurement of Venous Pulse, Central, Open Approach
4A040J1	Measurement of Venous Pulse, Peripheral, Open Approach

Showing 1–10 of 31

Typical Clinical Scenarios

An elderly patient is admitted to the intensive care unit with septic shock and multi-organ dysfunction requiring central venous access for hemodynamic monitoring. The critical care team performs invasive measurement of central venous pressure via an existing central venous catheter to guide fluid resuscitation and vasopressor management. This single-point physiologic measurement documents venous pressure to inform acute management decisions during the inpatient stay. Typical codes: 4A043B0
A patient with chronic liver disease is admitted electively for transjugular intrahepatic portal pressure assessment as part of preoperative evaluation for portal hypertension management. During the planned inpatient procedure, clinicians percutaneously measure portal venous pressure to quantify portal hypertension severity and to plan subsequent therapeutic interventions. The recorded pressure measurement is a diagnostic physiologic assessment performed at a specific time point. Typical codes: 4A043B2
A postoperative patient on the surgical ward develops new peripheral limb swelling and concern for deep venous thrombosis; bedside evaluation includes percutaneous measurement of peripheral venous flow to assess for venous obstruction and guide further imaging or anticoagulation decisions. The focused measurement captures venous flow from a peripheral venous site during the inpatient stay to evaluate a possible complication following surgery. Typical codes: 4A04351

Related Codes

4A00-CENTRAL-NERVOUS-MEASUREMENT

ICD-10-PCS Code For Central Nervous: Procedure Code Group Overview

4A01-PERIPHERAL-NERVOUS-MEASUREMENT

ICD-10-PCS Code For Peripheral Nervous: Procedure Code Group Overview

4A02-CARDIAC-MEASUREMENT

ICD-10-PCS Code For Cardiac: Procedure Code Group Overview

4A03-ARTERIAL-MEASUREMENT

ICD-10-PCS Code For Arterial: Procedure Code Group Overview

4A05-CIRCULATORY-MEASUREMENT

ICD-10-PCS Code For Circulatory: Procedure Code Group Overview

4A06-LYMPHATIC-MEASUREMENT

ICD-10-PCS Code For Lymphatic: Procedure Code Group Overview

4A07-VISUAL-MEASUREMENT

ICD-10-PCS Code For Visual: Procedure Code Group Overview

4A08-OLFACTORY-MEASUREMENT

ICD-10-PCS Code For Olfactory: Procedure Code Group Overview

4A09-RESPIRATORY-MEASUREMENT

ICD-10-PCS Code For Respiratory: Procedure Code Group Overview

4A0B-GASTROINTESTINAL-MEASUREMENT

ICD-10-PCS Code For Gastrointestinal: Procedure Code Group Overview

Showing 1–10 of 16

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 Venous: Procedure Code Group Overview

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

Venous Measurement Procedure Overview

Code Attributes

ICD-10-PCS Code For Venous: Procedure Code Group Overview

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

Venous Measurement Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS section and body system cover venous measurement procedures?

What types of venous physiological parameters are represented in the 4A04 code group?

How are approach types represented among the `4A04` venous measurement codes?

Can you list examples of specific ICD-10-PCS codes for measuring venous pressure and where they apply?

How does accurate coding within the `4A04` group impact inpatient documentation and reimbursement?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS section and body system cover venous measurement procedures?

What types of venous physiological parameters are represented in the 4A04 code group?

How are approach types represented among the `4A04` venous measurement codes?

Can you list examples of specific ICD-10-PCS codes for measuring venous pressure and where they apply?

How does accurate coding within the `4A04` group impact inpatient documentation and reimbursement?

References