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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 0NH3 includes procedures performed to insert nonbiological appliances in the parietal bone, right within the head and facial bones. These ICD-10-PCS codes are used for inpatient documentation when placing devices that monitor, assist, perform, or prevent physiological functions in the right parietal bone. Accurate coding within the ICD-10-PCS 0NH3 group is essential for proper inpatient reimbursement, as it captures the specific insertion procedure performed and supports clinical documentation accuracy.

Customize your policy alerts

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

Get alerted when relevant policies change without checking for updates manually.

Monitor payer policy activity

Receive email alerts as soon as relevant payer policies are published or updated.

Parietal Bone, Right Insertion Procedure Overview

This procedure group includes insertion of a nonbiological appliance into the right parietal bone and targets the head and facial bones body system. These procedures involve placing devices that monitor, assist, perform, or prevent physiological functions without replacing a body part. Accurate coding of these insertions ensures inpatient records reflect the exact operative action and support appropriate reimbursement and clinical reporting.

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
3	Body Part	Parietal Bone, Right

Explore openpayer tools

View all tools

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

Customize your policy alerts

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

Get alerted when relevant policies change without checking for updates manually.

Monitor payer policy activity

Receive email alerts as soon as relevant payer policies are published or updated.

Parietal Bone, Right 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
3	Body Part	Parietal Bone, Right

When to Use

Use a code from this group when a nonbiological device is surgically inserted into the right parietal bone to monitor, assist, perform, or prevent a physiological function. Do not use these codes for procedures that remove, replace, or otherwise revise an existing device in that location.

ICD-10-PCS Codes

3 rows

ICD-10-PCS Code	Description
0NH304Z	Insertion of Internal Fixation Device into Right Parietal Bone, Open Approach
0NH334Z	Insertion of Internal Fixation Device into Right Parietal Bone, Percutaneous Approach
0NH344Z	Insertion of Internal Fixation Device into Right Parietal 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 elderly patient on long-term anticoagulation presents after a ground-level fall with an acute epidural hematoma localized to the right parietal region causing focal neurologic deficits and increased intracranial pressure. Neurosurgery performs an open craniotomy to evacuate the hematoma and places a monitoring/infusion device anchored into the right parietal bone to control intracranial pressure and deliver localized therapy; an open insertion approach is used due to the need for direct access. Typical codes: 0NH304Z
A middle-aged patient with a history of refractory intracranial hypertension is admitted electively for placement of a device that assists cerebrospinal fluid diversion and intracranial pressure monitoring anchored in the right parietal bone; the procedure is planned and performed using a percutaneous approach under image guidance. Because the case is elective and utilizes minimally invasive percutaneous placement, a percutaneous insertion code applies. Typical codes: 0NH334Z
A younger adult who previously had a percutaneous intracranial monitoring bolt placed presents with device malfunction and persistent CSF leak; the care team removes the malfunctioning device and inserts a new monitoring/infusion appliance into the right parietal bone using a percutaneous endoscopic-assisted technique to ensure optimal positioning and seal. Typical codes: 0NH344Z

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

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

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.

Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.

Explore openpayer tools

View all tools

When to Use

ICD-10-PCS Codes

3 rows

ICD-10-PCS Code	Description
0NH304Z	Insertion of Internal Fixation Device into Right Parietal Bone, Open Approach
0NH334Z	Insertion of Internal Fixation Device into Right Parietal Bone, Percutaneous Approach
0NH344Z	Insertion of Internal Fixation Device into Right Parietal 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 elderly patient on long-term anticoagulation presents after a ground-level fall with an acute epidural hematoma localized to the right parietal region causing focal neurologic deficits and increased intracranial pressure. Neurosurgery performs an open craniotomy to evacuate the hematoma and places a monitoring/infusion device anchored into the right parietal bone to control intracranial pressure and deliver localized therapy; an open insertion approach is used due to the need for direct access. Typical codes: 0NH304Z
A middle-aged patient with a history of refractory intracranial hypertension is admitted electively for placement of a device that assists cerebrospinal fluid diversion and intracranial pressure monitoring anchored in the right parietal bone; the procedure is planned and performed using a percutaneous approach under image guidance. Because the case is elective and utilizes minimally invasive percutaneous placement, a percutaneous insertion code applies. Typical codes: 0NH334Z
A younger adult who previously had a percutaneous intracranial monitoring bolt placed presents with device malfunction and persistent CSF leak; the care team removes the malfunctioning device and inserts a new monitoring/infusion appliance into the right parietal bone using a percutaneous endoscopic-assisted technique to ensure optimal positioning and seal. Typical codes: 0NH344Z

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

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

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 Parietal Bone Right: Procedure Code Group Overview

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

Parietal Bone, Right Insertion Procedure Overview

Code Attributes

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

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

Parietal Bone, Right 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 ICD-10-PCS code group 0NH3 target?

What specific body part is identified in the 0NH3 code group?

What are the individual ICD-10-PCS codes included in the 0NH3 group?

Why is accurate coding within the ICD-10-PCS 0NH3 group important for inpatient documentation?

Which DRG categories may relate to procedures coded in the 0NH3 group?

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which body system and operation does ICD-10-PCS code group 0NH3 target?

What specific body part is identified in the 0NH3 code group?

What are the individual ICD-10-PCS codes included in the 0NH3 group?

Why is accurate coding within the ICD-10-PCS 0NH3 group important for inpatient documentation?

Which DRG categories may relate to procedures coded in the 0NH3 group?

References