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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 0NHC includes procedures performed to insert nonbiological appliances that monitor, assist, perform, or prevent a physiological function in the sphenoid bone within the head and facial bones. These ICD-10-PCS codes are used for inpatient documentation when an appliance is placed in or on the sphenoid bone to provide monitoring, assistance, performance, or prevention of a physiological function. Accurate coding within the ICD-10-PCS 0NHC group is essential for proper inpatient reimbursement, as it captures the specific insertion performed and determines appropriate case mix and payment.

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Sphenoid Bone Insertion Procedure Overview

This procedure group covers insertion of nonbiological appliances that monitor, assist, perform, or prevent a physiological function in the sphenoid bone and the head and facial bones system. Procedures involve placing devices into or onto the sphenoid bone to support or monitor physiological functions without replacing the bone. Accurate ICD-10-PCS coding ensures inpatient records reflect the specific insertion performed and supports appropriate reimbursement.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
N	Body System	Head and Facial Bones
H	Operation	Insertion
C	Body Part	Sphenoid Bone

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

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Sphenoid Bone Insertion Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
N	Body System	Head and Facial Bones
H	Operation	Insertion
C	Body Part	Sphenoid Bone

When to Use

Use a code from this group when a nonbiological appliance is placed in or on the sphenoid bone during an inpatient encounter to serve a monitoring, assisting, performing, or preventive function. Select the code that matches the appliance type and the specific sphenoid bone location documented in the operative record.

ICD-10-PCS Codes

3 rows

ICD-10-PCS Code	Description
0NHC04Z	Insertion of Internal Fixation Device into Sphenoid Bone, Open Approach
0NHC34Z	Insertion of Internal Fixation Device into Sphenoid Bone, Percutaneous Approach
0NHC44Z	Insertion of Internal Fixation Device into Sphenoid Bone, Percutaneous Endoscopic Approach

DRG Codes

3 rows

DRG Code	Description
143	Other Ear, Nose, Mouth and Throat O.R. Procedures with MCC
144	Other Ear, Nose, Mouth and Throat O.R. Procedures with CC
145	Other Ear, Nose, Mouth and Throat O.R. Procedures without CC/MCC

Typical Clinical Scenarios

A 28-year-old patient presents after a high-impact motor vehicle collision with a depressed fracture of the greater wing of the sphenoid causing bone fragments impinging on adjacent neurovascular structures. During an urgent open craniofacial exploration to elevate and stabilize the fractured sphenoid, an internal fixation plate is placed directly onto the sphenoid bone to restore structure and protect surrounding tissues. The procedure is performed via an open approach because of the need for direct visualization and manipulation of bone fragments. Typical codes: 0NHC04Z
A 45-year-old patient with symptomatic sphenoid wing osteomyelitis and chronic instability after prior trauma is scheduled electively for debridement and stabilization. To provide long-term mechanical support to the affected sphenoid bone segment and to prevent further deformity, an internal fixation device is placed percutaneously under image guidance as part of the planned inpatient procedure. The percutaneous approach is selected to minimize soft-tissue disruption while achieving stable fixation. Typical codes: 0NHC34Z
A 62-year-old patient who previously had image-guided percutaneous fixation of a sphenoid fracture presents with persistent pain and malposition of the implant. During the inpatient revision, the surgeon performs a minimally invasive endoscopic procedure to remove malpositioned hardware and reinsert a properly positioned internal fixation device into the sphenoid bone using a percutaneous endoscopic approach to correct the complication. The endoscopic technique allows direct visualization with reduced morbidity compared with an open reoperation. Typical codes: 0NHC44Z

Related Codes

0NH0-SKULL-INSERTION

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

0NH1-FRONTAL-BONE-INSERTION

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

0NH3-PARIETAL-BONE-RIGHT-INSERTION

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

0NH4-LEFT-PARIETAL-BONE-INSERTION

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

0NH5-TEMPORAL-BONE-RIGHT-INSERTION

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

0NH6-TEMPORAL-BONE-LEFT-INSERTION

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

0NH7-OCCIPITAL-BONE-INSERTION

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

0NHB-NASAL-BONE-INSERTION

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

0NHF-ETHMOID-BONE-RIGHT-INSERTION

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

0NHG-ETHMOID-BONE-LEFT-INSERTION

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

Showing 1–10 of 23

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

3 rows

ICD-10-PCS Code	Description
0NHC04Z	Insertion of Internal Fixation Device into Sphenoid Bone, Open Approach
0NHC34Z	Insertion of Internal Fixation Device into Sphenoid Bone, Percutaneous Approach
0NHC44Z	Insertion of Internal Fixation Device into Sphenoid Bone, Percutaneous Endoscopic Approach

DRG Codes

3 rows

DRG Code	Description
143	Other Ear, Nose, Mouth and Throat O.R. Procedures with MCC
144	Other Ear, Nose, Mouth and Throat O.R. Procedures with CC
145	Other Ear, Nose, Mouth and Throat O.R. Procedures without CC/MCC

Typical Clinical Scenarios

A 28-year-old patient presents after a high-impact motor vehicle collision with a depressed fracture of the greater wing of the sphenoid causing bone fragments impinging on adjacent neurovascular structures. During an urgent open craniofacial exploration to elevate and stabilize the fractured sphenoid, an internal fixation plate is placed directly onto the sphenoid bone to restore structure and protect surrounding tissues. The procedure is performed via an open approach because of the need for direct visualization and manipulation of bone fragments. Typical codes: 0NHC04Z
A 45-year-old patient with symptomatic sphenoid wing osteomyelitis and chronic instability after prior trauma is scheduled electively for debridement and stabilization. To provide long-term mechanical support to the affected sphenoid bone segment and to prevent further deformity, an internal fixation device is placed percutaneously under image guidance as part of the planned inpatient procedure. The percutaneous approach is selected to minimize soft-tissue disruption while achieving stable fixation. Typical codes: 0NHC34Z
A 62-year-old patient who previously had image-guided percutaneous fixation of a sphenoid fracture presents with persistent pain and malposition of the implant. During the inpatient revision, the surgeon performs a minimally invasive endoscopic procedure to remove malpositioned hardware and reinsert a properly positioned internal fixation device into the sphenoid bone using a percutaneous endoscopic approach to correct the complication. The endoscopic technique allows direct visualization with reduced morbidity compared with an open reoperation. Typical codes: 0NHC44Z

Related Codes

0NH0-SKULL-INSERTION

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

0NH1-FRONTAL-BONE-INSERTION

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

0NH3-PARIETAL-BONE-RIGHT-INSERTION

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

0NH4-LEFT-PARIETAL-BONE-INSERTION

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

0NH5-TEMPORAL-BONE-RIGHT-INSERTION

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

0NH6-TEMPORAL-BONE-LEFT-INSERTION

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

0NH7-OCCIPITAL-BONE-INSERTION

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

0NHB-NASAL-BONE-INSERTION

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

0NHF-ETHMOID-BONE-RIGHT-INSERTION

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

0NHG-ETHMOID-BONE-LEFT-INSERTION

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

Showing 1–10 of 23

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 Sphenoid Bone: Procedure Code Group Overview

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

Sphenoid Bone Insertion Procedure Overview

Code Attributes

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

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

Sphenoid Bone Insertion Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS section and body system does this sphenoid bone procedure group belong to?

What types of devices are represented by ICD-10-PCS code group 0NHC?

Which specific ICD-10-PCS codes are included in this 0NHC group and what approaches do they represent?

How does accurate coding within ICD-10-PCS 0NHC affect inpatient records and payment?

Which DRGs are related to procedures in the sphenoid bone insertion group?

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS section and body system does this sphenoid bone procedure group belong to?

What types of devices are represented by ICD-10-PCS code group 0NHC?

Which specific ICD-10-PCS codes are included in this 0NHC group and what approaches do they represent?

How does accurate coding within ICD-10-PCS 0NHC affect inpatient records and payment?

Which DRGs are related to procedures in the sphenoid bone insertion group?

References