ICD-10-PCS Code For Nasal Bone: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 0N9B includes procedures performed to drain fluids or gases from structures in the nasal bone. These ICD-10-PCS codes are used for inpatient documentation when a clinician performs drainage of the nasal bone to remove accumulated fluid or gas. Accurate coding within the ICD-10-PCS 0N9B group is essential for proper inpatient reimbursement, as it captures the procedure performed and supports clinical documentation accuracy.

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Nasal Bone Drainage Procedure Overview

Procedures in this group involve drainage of the nasal bone within the head and facial bones body system and consist of removing fluids or gases from the nasal bone area. These drainage procedures target the bony structures of the nose rather than soft tissues or mucosa. Accurate coding is important for inpatient reimbursement because it documents the specific body part and operation performed, which affects case mix and payment. Clear documentation of the drainage procedure supports clinical records and correct ICD-10-PCS assignment.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
N	Body System	Head and Facial Bones
9	Operation	Drainage
B	Body Part	Nasal Bone

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ICD-10-PCS Code For Nasal Bone: Procedure Code Group Overview

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Nasal Bone Drainage Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
N	Body System	Head and Facial Bones
9	Operation	Drainage
B	Body Part	Nasal Bone

When to Use

Use a code from this group when a documented procedure involves draining fluid or gas directly from the nasal bone. Select the specific ICD-10-PCS code that matches the documented approach and any device or qualifier details in the operative record.

ICD-10-PCS Codes

9 rows

ICD-10-PCS Code	Description
0N9B00Z	Drainage of Nasal Bone with Drainage Device, Open Approach
0N9B0ZX	Drainage of Nasal Bone, Open Approach, Diagnostic
0N9B0ZZ	Drainage of Nasal Bone, Open Approach
0N9B30Z	Drainage of Nasal Bone with Drainage Device, Percutaneous Approach
0N9B3ZX	Drainage of Nasal Bone, Percutaneous Approach, Diagnostic
0N9B3ZZ	Drainage of Nasal Bone, Percutaneous Approach
0N9B40Z	Drainage of Nasal Bone with Drainage Device, Percutaneous Endoscopic Approach
0N9B4ZX	Drainage of Nasal Bone, Percutaneous Endoscopic Approach, Diagnostic
0N9B4ZZ	Drainage of Nasal Bone, Percutaneous Endoscopic Approach

Typical Clinical Scenarios

A young adult presents to the emergency department after blunt facial trauma with focal swelling and a suspected hematoma tracked into the nasal bone area causing localized pressure and worsening pain. Imaging confirms accumulation of blood confined to the nasal bone periosteal region requiring surgical evacuation under open exposure to relieve pressure and obtain hemostasis. An open drainage procedure of the nasal bone is performed with placement of a small external drainage device to allow continued egress of fluid. Typical codes: 0N9B00Z
An older patient is admitted electively for chronic, recurrent serous collection over a nasal bony prominence causing cosmetic deformity and intermittent infection despite medical therapy. After preoperative planning, the surgeon performs an open approach to directly access the nasal bone, evacuates the chronic fluid collection for culture and pathology, and documents placement of no device beyond diagnostic sampling. The procedure is performed to definitively evacuate the collection and confirm diagnosis. Typical codes: 0N9B0ZX, 0N9B0ZZ
A patient with a prior percutaneous drainage of a nasal bone collection returns with persistent drainage and signs of ongoing infection; imaging shows residual loculated fluid requiring repeat intervention. The team performs a percutaneous approach under image guidance to drain the remaining collection and leaves a temporary drainage catheter in place to ensure continued outflow until infection resolves. Typical codes: 0N9B30Z, 0N9B3ZZ

Related Codes

0N90-SKULL-DRAINAGE

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

0N91-FRONTAL-BONE-DRAINAGE

ICD-10-PCS Code For Frontal Bone: Procedure Code Group Overview

0N93-PARIETAL-BONE-DRAINAGE

ICD-10-PCS Code For Parietal Bone Right: Procedure Code Group Overview

0N94-LEFT-PARIETAL-BONE-DRAINAGE

ICD-10-PCS Code For Parietal Bone, Left: Procedure Code Group Overview

0N95-TEMPORAL-BONE-RIGHT-DRAINAGE

ICD-10-PCS Code For Temporal Bone, Right: Procedure Code Group Overview

0N96-TEMPORAL-BONE-DRAINAGE

ICD-10-PCS Code For Temporal Bone Left: Procedure Code Group Overview

0N97-OCCIPITAL-BONE-DRAINAGE

ICD-10-PCS Code For Occipital Bone: Procedure Code Group Overview

0N9C-SPHENOID-BONE-DRAINAGE

ICD-10-PCS Code For Sphenoid Bone: Procedure Code Group Overview

0N9F-ETHMOID-BONE-RIGHT-DRAINAGE

ICD-10-PCS Code For Ethmoid Bone Right: Procedure Code Group Overview

0N9G-ETHMOID-BONE-LEFT-DRAINAGE

ICD-10-PCS Code For Ethmoid Bone, Left: Procedure Code Group Overview

Showing 1–10 of 22

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
0N9B00Z	Drainage of Nasal Bone with Drainage Device, Open Approach
0N9B0ZX	Drainage of Nasal Bone, Open Approach, Diagnostic
0N9B0ZZ	Drainage of Nasal Bone, Open Approach
0N9B30Z	Drainage of Nasal Bone with Drainage Device, Percutaneous Approach
0N9B3ZX	Drainage of Nasal Bone, Percutaneous Approach, Diagnostic
0N9B3ZZ	Drainage of Nasal Bone, Percutaneous Approach
0N9B40Z	Drainage of Nasal Bone with Drainage Device, Percutaneous Endoscopic Approach
0N9B4ZX	Drainage of Nasal Bone, Percutaneous Endoscopic Approach, Diagnostic
0N9B4ZZ	Drainage of Nasal Bone, Percutaneous Endoscopic Approach

Typical Clinical Scenarios

A young adult presents to the emergency department after blunt facial trauma with focal swelling and a suspected hematoma tracked into the nasal bone area causing localized pressure and worsening pain. Imaging confirms accumulation of blood confined to the nasal bone periosteal region requiring surgical evacuation under open exposure to relieve pressure and obtain hemostasis. An open drainage procedure of the nasal bone is performed with placement of a small external drainage device to allow continued egress of fluid. Typical codes: 0N9B00Z
An older patient is admitted electively for chronic, recurrent serous collection over a nasal bony prominence causing cosmetic deformity and intermittent infection despite medical therapy. After preoperative planning, the surgeon performs an open approach to directly access the nasal bone, evacuates the chronic fluid collection for culture and pathology, and documents placement of no device beyond diagnostic sampling. The procedure is performed to definitively evacuate the collection and confirm diagnosis. Typical codes: 0N9B0ZX, 0N9B0ZZ
A patient with a prior percutaneous drainage of a nasal bone collection returns with persistent drainage and signs of ongoing infection; imaging shows residual loculated fluid requiring repeat intervention. The team performs a percutaneous approach under image guidance to drain the remaining collection and leaves a temporary drainage catheter in place to ensure continued outflow until infection resolves. Typical codes: 0N9B30Z, 0N9B3ZZ

Related Codes

0N90-SKULL-DRAINAGE

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

0N91-FRONTAL-BONE-DRAINAGE

ICD-10-PCS Code For Frontal Bone: Procedure Code Group Overview

0N93-PARIETAL-BONE-DRAINAGE

ICD-10-PCS Code For Parietal Bone Right: Procedure Code Group Overview

0N94-LEFT-PARIETAL-BONE-DRAINAGE

ICD-10-PCS Code For Parietal Bone, Left: Procedure Code Group Overview

0N95-TEMPORAL-BONE-RIGHT-DRAINAGE

ICD-10-PCS Code For Temporal Bone, Right: Procedure Code Group Overview

0N96-TEMPORAL-BONE-DRAINAGE

ICD-10-PCS Code For Temporal Bone Left: Procedure Code Group Overview

0N97-OCCIPITAL-BONE-DRAINAGE

ICD-10-PCS Code For Occipital Bone: Procedure Code Group Overview

0N9C-SPHENOID-BONE-DRAINAGE

ICD-10-PCS Code For Sphenoid Bone: Procedure Code Group Overview

0N9F-ETHMOID-BONE-RIGHT-DRAINAGE

ICD-10-PCS Code For Ethmoid Bone Right: Procedure Code Group Overview

0N9G-ETHMOID-BONE-LEFT-DRAINAGE

ICD-10-PCS Code For Ethmoid Bone, Left: Procedure Code Group Overview

Showing 1–10 of 22

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 Nasal Bone: Procedure Code Group Overview

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

Nasal Bone Drainage Procedure Overview

Code Attributes

ICD-10-PCS Code For Nasal Bone: Procedure Code Group Overview

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

Nasal Bone Drainage Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which body system and operation does ICD-10-PCS code group 0N9B represent?

What types of approaches are represented within the 0N9B code group?

How should individual codes in this group be documented when present?

What do codes with an ‘X’ in the seventh character indicate in this group?

Are there related DRGs listed for the 0N9B nasal bone drainage codes?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which body system and operation does ICD-10-PCS code group 0N9B represent?

What types of approaches are represented within the 0N9B code group?

How should individual codes in this group be documented when present?

What do codes with an ‘X’ in the seventh character indicate in this group?

Are there related DRGs listed for the 0N9B nasal bone drainage codes?

References