Division of Phrenic Nerve, Open Approach

ValidICD-10-PCS procedure code.

Valid for claims with a date of service in the current code year.

Valid FY2016 onwards.

What has happened to this code

Every change the publisher made, from 2014 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

FY2014 Added to the draft code set draft Division of Phrenic Nerve, Open Approach

What this code says

Each character is read in its own position, so the same letter means different things in different places. Definitions are CMS's own.

3. Root operation Division

Cutting into a body part, without draining fluids and/or gases from the body part, in order to separate or transect a body part

All or a portion of the body part is separated into two or more portions

For example

Spinal cordotomy, osteotomy

4. Body Part Phrenic Nerve

Also covers

Accessory phrenic nerve

5. Approach Open

Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure

Codes in the same group

Code	Description	Status
01800ZZ	Division of Cervical Plexus, Open Approach	Valid
01803ZZ	Division of Cervical Plexus, Percutaneous Approach	Valid
01804ZZ	Division of Cervical Plexus, Percutaneous Endoscopic Approach	Valid
01810ZZ	Division of Cervical Nerve, Open Approach	Valid
01813ZZ	Division of Cervical Nerve, Percutaneous Approach	Valid
01814ZZ	Division of Cervical Nerve, Percutaneous Endoscopic Approach	Valid
01823ZZ	Division of Phrenic Nerve, Percutaneous Approach	Valid
01824ZZ	Division of Phrenic Nerve, Percutaneous Endoscopic Approach	Valid
01830ZZ	Division of Brachial Plexus, Open Approach	Valid
01833ZZ	Division of Brachial Plexus, Percutaneous Approach	Valid
01834ZZ	Division of Brachial Plexus, Percutaneous Endoscopic Approach	Valid
01840ZZ	Division of Ulnar Nerve, Open Approach	Valid

At a glance

Code: 01820ZZ
System: ICD-10-PCS
Status: Valid
Valid: FY2016 onwards
In the code set: FY2016 onwards
Part of: 018

Where this code sits

Section 0 Medical and Surgical
Body system 01 Peripheral Nervous System
Category 018 Peripheral Nervous System, Division
This code 01820ZZ Division of Phrenic Nerve, Open Approach

What each character means

0 Section Medical and Surgical
1 Body system Peripheral Nervous System
8 Root operation Division
2 Body Part Phrenic Nerve
0 Approach Open
Z Device No Device
Z Qualifier No Qualifier

Source

ICD-10-PCS FY2027 code set, published by the Centers for Medicare and Medicaid Services (CMS).

Effective October 1, 2026.

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