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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 0NH6 includes procedures performed to insert nonbiological appliances that monitor, assist, perform, or prevent a physiological function in the left temporal bone. These ICD-10-PCS codes are used for inpatient documentation when a device is placed into the left temporal bone to provide monitoring, assistive function, or physiological support without replacing tissue. Accurate coding within the ICD-10-PCS 0NH6 group is essential for proper inpatient reimbursement, as it captures the procedure performed and supports clinical documentation accuracy.

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Temporal Bone, Left Insertion Procedure Overview

This procedure group covers the insertion of nonbiological appliances into the left temporal bone, targeting the head and facial bones. Procedures in this group involve placing devices that monitor, assist, perform, or prevent physiological functions without replacing the anatomy. Accurate coding of these insertions supports correct inpatient documentation and reimbursement by capturing the procedure performed and its clinical intent.

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
6	Body Part	Temporal Bone, Left

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

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Temporal Bone, Left 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
6	Body Part	Temporal Bone, Left

When to Use

Use a code from this group when an appliance is placed into the left temporal bone to provide monitoring, assistance, performance, or prevention of a physiological function. Select the specific ICD-10-PCS code that matches the device type and left temporal bone as the targeted body part.

ICD-10-PCS Codes

6 rows

ICD-10-PCS Code	Description
0NH604Z	Insertion of Internal Fixation Device into Left Temporal Bone, Open Approach
0NH60SZ	Insertion of Hearing Device into Left Temporal Bone, Open Approach
0NH634Z	Insertion of Internal Fixation Device into Left Temporal Bone, Percutaneous Approach
0NH63SZ	Insertion of Hearing Device into Left Temporal Bone, Percutaneous Approach
0NH644Z	Insertion of Internal Fixation Device into Left Temporal Bone, Percutaneous Endoscopic Approach
0NH64SZ	Insertion of Hearing Device into Left Temporal Bone, Percutaneous Endoscopic Approach

DRG Codes

15 rows

DRG Code	Description
023	Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator
024	Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCC
025	Craniotomy and Endovascular Intracranial Procedures with MCC
026	Craniotomy and Endovascular Intracranial Procedures with CC
027	Craniotomy and Endovascular Intracranial Procedures without CC/MCC
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
515	Other Musculoskeletal System and Connective Tissue O.R. Procedures with MCC
516	Other Musculoskeletal System and Connective Tissue O.R. Procedures with CC

Showing 1–10 of 15

Typical Clinical Scenarios

An adult patient presents after a temporal bone fracture from a motor vehicle collision with conductive hearing loss and instability of the ossicular chain. Inpatient surgical repair requires placement of a fixation device into the left temporal bone to stabilize bone fragments and restore middle ear mechanics. An open approach is used due to associated facial nerve exploration and bone reconstruction. Typical codes: 0NH604Z
An elderly patient with progressive sensorineural hearing loss elects to undergo implantation of a hearing prosthesis targeting the left temporal bone after outpatient evaluation. The planned procedure is performed under general anesthesia through a percutaneous approach to insert the hearing device into the left temporal bone for long-term auditory assistance. The patient is admitted for postoperative monitoring due to comorbidities. Typical codes: 0NH63SZ
A patient with a previously placed left temporal bone hearing implant presents with device malfunction and recurrent infections at the implant site. During the inpatient revision, the surgeon removes the failed components and inserts a replacement internal fixation element and/or hearing device using a percutaneous endoscopic approach to minimize additional bone disruption. The procedure addresses both the mechanical failure and the infected implant pocket. Typical codes: 0NH644Z, 0NH64SZ

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

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

0NHC-SPHENOID-BONE-INSERTION

ICD-10-PCS Code For Sphenoid 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

6 rows

ICD-10-PCS Code	Description
0NH604Z	Insertion of Internal Fixation Device into Left Temporal Bone, Open Approach
0NH60SZ	Insertion of Hearing Device into Left Temporal Bone, Open Approach
0NH634Z	Insertion of Internal Fixation Device into Left Temporal Bone, Percutaneous Approach
0NH63SZ	Insertion of Hearing Device into Left Temporal Bone, Percutaneous Approach
0NH644Z	Insertion of Internal Fixation Device into Left Temporal Bone, Percutaneous Endoscopic Approach
0NH64SZ	Insertion of Hearing Device into Left Temporal Bone, Percutaneous Endoscopic Approach

DRG Codes

15 rows

DRG Code	Description
023	Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator
024	Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCC
025	Craniotomy and Endovascular Intracranial Procedures with MCC
026	Craniotomy and Endovascular Intracranial Procedures with CC
027	Craniotomy and Endovascular Intracranial Procedures without CC/MCC
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
515	Other Musculoskeletal System and Connective Tissue O.R. Procedures with MCC
516	Other Musculoskeletal System and Connective Tissue O.R. Procedures with CC

Showing 1–10 of 15

Typical Clinical Scenarios

An adult patient presents after a temporal bone fracture from a motor vehicle collision with conductive hearing loss and instability of the ossicular chain. Inpatient surgical repair requires placement of a fixation device into the left temporal bone to stabilize bone fragments and restore middle ear mechanics. An open approach is used due to associated facial nerve exploration and bone reconstruction. Typical codes: 0NH604Z
An elderly patient with progressive sensorineural hearing loss elects to undergo implantation of a hearing prosthesis targeting the left temporal bone after outpatient evaluation. The planned procedure is performed under general anesthesia through a percutaneous approach to insert the hearing device into the left temporal bone for long-term auditory assistance. The patient is admitted for postoperative monitoring due to comorbidities. Typical codes: 0NH63SZ
A patient with a previously placed left temporal bone hearing implant presents with device malfunction and recurrent infections at the implant site. During the inpatient revision, the surgeon removes the failed components and inserts a replacement internal fixation element and/or hearing device using a percutaneous endoscopic approach to minimize additional bone disruption. The procedure addresses both the mechanical failure and the infected implant pocket. Typical codes: 0NH644Z, 0NH64SZ

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

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

0NHC-SPHENOID-BONE-INSERTION

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

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

Temporal Bone, Left Insertion Procedure Overview

Code Attributes

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

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

Temporal Bone, Left Insertion Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which body system and operation does the ICD-10-PCS code group 0NH6 represent?

What specific ICD-10-PCS codes are included in the 0NH6 group and how do they differ by approach and device?

What clinical intent or device function does the 0NH6 procedure group capture for inpatient documentation?

How does accurate coding within the 0NH6 group affect inpatient reimbursement and documentation?

Which DRG categories may be related to procedures coded from the 0NH6 group?

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which body system and operation does the ICD-10-PCS code group 0NH6 represent?

What specific ICD-10-PCS codes are included in the 0NH6 group and how do they differ by approach and device?

What clinical intent or device function does the 0NH6 procedure group capture for inpatient documentation?

How does accurate coding within the 0NH6 group affect inpatient reimbursement and documentation?

Which DRG categories may be related to procedures coded from the 0NH6 group?

References