0NH005ZInsertion of External Fixation Device into Skull, Open Approach

Medical and Surgical›Head and Facial Bones›Insertion

Billable / Specific Code

ICD-10-PCS 0NH005Z

CMS Source: FY 2026 ICD-10-PCS dataset. Effective Oct 1, 2025 – Sep 30, 2026.

0NH005Z is a billable ICD-10-PCS procedure code for Insertion of External Fixation Device into Skull, Open Approach. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The root operation Insertion involves putting in a nonbiological appliance that monitors, assists, performs, or prevents a physiological function but does not physically take the place of a body part.

Code Identity

ICD-10-PCS Code

0NH005Z

Billable Status

Yes — Valid for Submission

Code Describes

Insertion of External Fixation Device into Skull, Open Approach

Parent Code

0NH

Short Description

Insertion of Ext Fix into Skull, Open Approach

PCS Table Breakdown

Each ICD-10-PCS code is built from seven characters, each an axis of the procedure. Hover or tap the icons for the official CMS definitions.

Position	Designation	Value	Meaning
1	Section	0	Medical and Surgical
2	Body System	N	Head and Facial Bones
3	Operation	H	Insertion
4	BodyPart	0	Skull
5	Approach	0	Open
6	Device	5	External Fixation Device
7	Qualifier	Z	No Qualifier

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for 0NH005Z under the General Equivalence Mappings.

93.59

Approximate match.

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Questions About 0NH005Z

Is 0NH005Z a billable code?

Yes. 0NH005Z is a complete seven-character ICD-10-PCS code, specific enough to report Insertion of External Fixation Device into Skull, Open Approach on inpatient claims from October 1, 2025 through September 30, 2026.

What do the characters in 0NH005Z mean?

0NH005Z breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character N is the Body System (Head and Facial Bones); the 3rd character H is the Operation (Insertion); the 4th character 0 is the BodyPart (Skull); the 5th character 0 is the Approach (Open); the 6th character 5 is the Device (External Fixation Device); the 7th character Z is the Qualifier (No Qualifier).

What is the ICD-9-PCS equivalent of 0NH005Z?

Under the General Equivalence Mappings, Insertion of External Fixation Device into Skull, Open Approach crosswalks to ICD-9-PCS 93.59. The mapping is approximate, so confirm it fits the documentation.