ICD-10-PCS Code for Para-aortic Body: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 0G99 includes procedures performed to drain fluids and gases in the para-aortic region. These ICD-10-PCS codes are used for inpatient documentation when fluid or gas collections adjacent to the aorta require removal to treat infection, bleeding, or mass effect. Accurate coding within the ICD-10-PCS 0G99 group is essential for proper inpatient reimbursement, as it captures procedure performed and supports clinical documentation accuracy.

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Para-aortic Body Drainage Procedure Overview

Procedures in this group involve drainage of fluid or gas from the para-aortic region and target the endocrine system structures adjacent to the aorta. These operations remove accumulations such as abscesses, hematomas, or other fluid collections. Accurate coding of these drainage procedures is important for inpatient reimbursement because it captures the specific operation, body part, and clinical complexity.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
G	Body System	Endocrine System
9	Operation	Drainage
9	Body Part	Para-aortic Body

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ICD-10-PCS Code for Para-aortic Body: Procedure Code Group Overview

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Para-aortic Body Drainage Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
G	Body System	Endocrine System
9	Operation	Drainage
9	Body Part	Para-aortic Body

When to Use

Use a code from this group when the primary inpatient procedure is drainage of fluid or gas from the para-aortic body. Select the specific code based on the approach and any device used during the drainage.

ICD-10-PCS Codes

9 rows

ICD-10-PCS Code	Description
0G9900Z	Drainage of Para-aortic Body with Drainage Device, Open Approach
0G990ZX	Drainage of Para-aortic Body, Open Approach, Diagnostic
0G990ZZ	Drainage of Para-aortic Body, Open Approach
0G9930Z	Drainage of Para-aortic Body with Drainage Device, Percutaneous Approach
0G993ZX	Drainage of Para-aortic Body, Percutaneous Approach, Diagnostic
0G993ZZ	Drainage of Para-aortic Body, Percutaneous Approach
0G9940Z	Drainage of Para-aortic Body with Drainage Device, Percutaneous Endoscopic Approach
0G994ZX	Drainage of Para-aortic Body, Percutaneous Endoscopic Approach, Diagnostic
0G994ZZ	Drainage of Para-aortic Body, Percutaneous Endoscopic Approach

DRG Codes

3 rows

DRG Code	Description
252	Other Vascular Procedures with MCC
253	Other Vascular Procedures with CC
254	Other Vascular Procedures without CC/MCC

Typical Clinical Scenarios

An elderly patient on anticoagulation presents to the emergency department with sudden abdominal pain, hypotension, and a drop in hemoglobin after a fall; CT shows a para-aortic hematoma compressing adjacent structures. The patient is admitted for hemodynamic stabilization and urgent evacuation of the hematoma to control bleeding and relieve mass effect; an open drainage may be required if percutaneous access is not feasible. Typical codes: 0G9900Z, 0G990ZZ
A middle-aged patient with known retroperitoneal abscess adjacent to the aorta develops fever, leukocytosis, and persistent pain despite antibiotics and outpatient drainage attempts; they are admitted for definitive drainage and source control. A percutaneous or percutaneous endoscopic drainage procedure is performed to evacuate the abscess and place a drainage catheter for ongoing drainage and monitoring. Typical codes: 0G9930Z, 0G9940Z
A postoperative patient following spinal surgery develops a sterile fluid collection in the para-aortic region detected on imaging, causing persistent pain and risk of infection; conservative measures fail and inpatient intervention is planned to prevent complications. A targeted percutaneous diagnostic drainage may be performed first to evaluate fluid character, followed by placement of a drainage device if needed. Typical codes: 0G993ZX, 0G9930Z

Related Codes

0G90-PITUITARY-GLAND-DRAINAGE

ICD-10-PCS Code For Pituitary Gland: Procedure Code Group Overview

0G91-PINEAL-BODY-DRAINAGE

ICD-10-PCS Code For Pineal Body: Procedure Code Group Overview

0G92-LEFT-ADRENAL-GLAND-DRAINAGE

ICD-10-PCS Code For Adrenal Gland Left: Procedure Code Group Overview

0G93-ADRENAL-GLAND-RIGHT-DRAINAGE

ICD-10-PCS Code For Adrenal Gland Right: Procedure Code Group Overview

0G94-ADRENAL-GLANDS-DRAINAGE

ICD-10-PCS Code For Adrenal Glands Bilateral: Procedure Code Group Overview

0G96-CAROTID-BODY-LEFT-DRAINAGE

ICD-10-PCS Code For Carotid Body, Left: Procedure Code Group Overview

0G97-CAROTID-BODY-RIGHT-DRAINAGE

ICD-10-PCS Code For Carotid Body, Right: Procedure Code Group Overview

0G98-CAROTID-BODIES-DRAINAGE

ICD-10-PCS Code For Carotid Bodies, Bilateral: Procedure Code Group Overview

0G9B-COCCYGEAL-GLOMUS-DRAINAGE

ICD-10-PCS Code For Coccygeal Glomus: Procedure Code Group Overview

0G9C-GLOMUS-JUGULARE-DRAINAGE

ICD-10-PCS Code For Glomus Jugulare: Procedure Code Group Overview

Showing 1–10 of 21

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

9 rows

ICD-10-PCS Code	Description
0G9900Z	Drainage of Para-aortic Body with Drainage Device, Open Approach
0G990ZX	Drainage of Para-aortic Body, Open Approach, Diagnostic
0G990ZZ	Drainage of Para-aortic Body, Open Approach
0G9930Z	Drainage of Para-aortic Body with Drainage Device, Percutaneous Approach
0G993ZX	Drainage of Para-aortic Body, Percutaneous Approach, Diagnostic
0G993ZZ	Drainage of Para-aortic Body, Percutaneous Approach
0G9940Z	Drainage of Para-aortic Body with Drainage Device, Percutaneous Endoscopic Approach
0G994ZX	Drainage of Para-aortic Body, Percutaneous Endoscopic Approach, Diagnostic
0G994ZZ	Drainage of Para-aortic Body, Percutaneous Endoscopic Approach

DRG Codes

3 rows

DRG Code	Description
252	Other Vascular Procedures with MCC
253	Other Vascular Procedures with CC
254	Other Vascular Procedures without CC/MCC

Typical Clinical Scenarios

An elderly patient on anticoagulation presents to the emergency department with sudden abdominal pain, hypotension, and a drop in hemoglobin after a fall; CT shows a para-aortic hematoma compressing adjacent structures. The patient is admitted for hemodynamic stabilization and urgent evacuation of the hematoma to control bleeding and relieve mass effect; an open drainage may be required if percutaneous access is not feasible. Typical codes: 0G9900Z, 0G990ZZ
A middle-aged patient with known retroperitoneal abscess adjacent to the aorta develops fever, leukocytosis, and persistent pain despite antibiotics and outpatient drainage attempts; they are admitted for definitive drainage and source control. A percutaneous or percutaneous endoscopic drainage procedure is performed to evacuate the abscess and place a drainage catheter for ongoing drainage and monitoring. Typical codes: 0G9930Z, 0G9940Z
A postoperative patient following spinal surgery develops a sterile fluid collection in the para-aortic region detected on imaging, causing persistent pain and risk of infection; conservative measures fail and inpatient intervention is planned to prevent complications. A targeted percutaneous diagnostic drainage may be performed first to evaluate fluid character, followed by placement of a drainage device if needed. Typical codes: 0G993ZX, 0G9930Z

Related Codes

0G90-PITUITARY-GLAND-DRAINAGE

ICD-10-PCS Code For Pituitary Gland: Procedure Code Group Overview

0G91-PINEAL-BODY-DRAINAGE

ICD-10-PCS Code For Pineal Body: Procedure Code Group Overview

0G92-LEFT-ADRENAL-GLAND-DRAINAGE

ICD-10-PCS Code For Adrenal Gland Left: Procedure Code Group Overview

0G93-ADRENAL-GLAND-RIGHT-DRAINAGE

ICD-10-PCS Code For Adrenal Gland Right: Procedure Code Group Overview

0G94-ADRENAL-GLANDS-DRAINAGE

ICD-10-PCS Code For Adrenal Glands Bilateral: Procedure Code Group Overview

0G96-CAROTID-BODY-LEFT-DRAINAGE

ICD-10-PCS Code For Carotid Body, Left: Procedure Code Group Overview

0G97-CAROTID-BODY-RIGHT-DRAINAGE

ICD-10-PCS Code For Carotid Body, Right: Procedure Code Group Overview

0G98-CAROTID-BODIES-DRAINAGE

ICD-10-PCS Code For Carotid Bodies, Bilateral: Procedure Code Group Overview

0G9B-COCCYGEAL-GLOMUS-DRAINAGE

ICD-10-PCS Code For Coccygeal Glomus: Procedure Code Group Overview

0G9C-GLOMUS-JUGULARE-DRAINAGE

ICD-10-PCS Code For Glomus Jugulare: Procedure Code Group Overview

Showing 1–10 of 21

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 Para-aortic Body: Procedure Code Group Overview

Sign up for ICD-10-PCS Code for Para-aortic Body: Procedure Code Group Overview policy alerts

Para-aortic Body Drainage Procedure Overview

Code Attributes

ICD-10-PCS Code for Para-aortic Body: Procedure Code Group Overview

Sign up for ICD-10-PCS Code for Para-aortic Body: Procedure Code Group Overview policy alerts

Para-aortic Body Drainage Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS code group covers drainage of the para-aortic region?

What types of clinical situations are captured by the 0G99 code group?

What approaches and devices are reflected among the specific 0G99 codes?

How does accurate coding within 0G99 affect inpatient reimbursement?

Which DRGs are related to procedures in the 0G99 para-aortic drainage group?

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS code group covers drainage of the para-aortic region?

What types of clinical situations are captured by the 0G99 code group?

What approaches and devices are reflected among the specific 0G99 codes?

How does accurate coding within 0G99 affect inpatient reimbursement?

Which DRGs are related to procedures in the 0G99 para-aortic drainage group?

References