2025 ICD-10-CM Procedure Code GZGZZZZ

Narcosynthesis

ICD-10-PCS Code:: GZGZZZZ
ICD-10-PCS Code for:: Narcosynthesis
Is Billable?: Yes - Valid for Submission
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GZGZZZZ is a billable procedure code used to specify the performance of narcosynthesis. The code is valid for the year 2025 for the submission of HIPAA-covered transactions. The procedure code involves administration of intravenous barbiturates in order to release suppressed or repressed thoughts.

Table of Contents

Code Information
PCS Table
Clinical Classification
Convert to ICD-9-PCS
Other Similar Codes

GZGZZZZ PCS Table

In an PCS table each code is represented by up seven alphanumeric characters, with each character in the table respresenting different aspects of the procedure. In the table provided below, each row represents an individual character and includes information about the character's position, designation, label, and procedure notes. For this PCS table the procedure code is in the mental health section and is part of the none body system, classified under narcosynthesis type. The applicable qualifier for this procedure code is none.

Position	Designation	Character	Label	Procedures Notes
1	Section	G	Mental Health
2	Body System	Z	None
3	Type	G	Narcosynthesis	Involves: Administration of intravenous barbiturates in order to release suppressed or repressed thoughts
4	Qualifier	Z	None
5	Qualifier	Z	None	Explanation: The value Z is used for the fifth character to indicate that a specific qualifier does not apply to the procedure.
6	Qualifier	Z	None	Explanation: The value Z is used for the sixth character to indicate that a specific qualifier does not apply to the procedure.
7	Qualifier	Z	None	Explanation: The value Z is used for the seventh character to indicate that a specific qualifier does not apply to the procedure.

Clinical Classification

Mental health procedures, NEC

CCSR Code: MHT005

Clinical Domain: Mental Health Therapy MHT contains 5 categories that include procedures related to therapies for mental health, such as electroconvulsive therapy, crisis intervention, and pharmacotherapy for mental health.

Convert to ICD-9-PCS

Below are the ICD-9=PCS code(s) that most closely match this ICD-10-PCS code, based on the General Equivalence Mappings (GEMs). This ICD-10-PCS to ICD-9-PCS crosswalk tool is helpful for coders who need to reference legacy diagnosis codes for audits, historical claims, or approximate code comparisons.

ICD-9-PCS Code

Code: 9421

This is a direct mapping with no qualifiers. The ICD-9-PCS code is considered an exact match.

Other ICD-10-PCS Codes Used for Narcosynthesis None

What is ICD-10-PCS?

The ICD-10 Procedure Coding System (ICD-10-PCS) is a catalog of procedural codes used by medical professionals for hospital inpatient healthcare settings. The Centers for Medicare and Medicaid Services (CMS) maintain the catalog in the U.S. releasing yearly updates. The 2025 ICD-10-PCS codes are to be used for discharges occurring from October 1, 2024 through September 30, 2025.

Each ICD-10-PCS code has a structure of seven alphanumeric characters and contains no decimals. The first character defines the major "section". Depending on the "section" the second through seventh characters mean different things.