ICD-10-PCS Code For Pituitary Gland: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 0G20 includes procedures performed to change devices in the pituitary gland. These ICD-10-PCS codes are used for inpatient documentation when an existing device on the pituitary gland is removed and an identical or similar device is placed without cutting or puncturing the skin or a mucous membrane. Accurate coding within the ICD-10-PCS 0G20 group is essential for proper inpatient reimbursement, as it captures the procedure performed and determines appropriate case mix and payment.

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Pituitary Gland Change Procedure Overview

Procedures in this group involve changing an implanted or attached device on the pituitary gland without making a new incision or puncturing the skin or mucous membranes. These procedures target the endocrine system and specifically the pituitary gland. Accurate ICD-10-PCS coding ensures the inpatient record reflects the device change performed and supports correct case assignment for reimbursement.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
G	Body System	Endocrine System
2	Operation	Change
0	Body Part	Pituitary Gland

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ICD-10-PCS Code For Pituitary Gland: Procedure Code Group Overview

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Pituitary Gland Change Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
G	Body System	Endocrine System
2	Operation	Change
0	Body Part	Pituitary Gland

When to Use

Use a code from this group when an implanted or attached device on the pituitary gland is exchanged for an identical or similar device and no skin or mucous membrane is cut or punctured. These codes are appropriate for inpatient reporting of device change procedures on the pituitary gland performed percutaneously or via existing access without new surgical entry.

ICD-10-PCS Codes

2 rows

ICD-10-PCS Code	Description
0G20X0Z	Change Drainage Device in Pituitary Gland, External Approach
0G20XYZ	Change Other Device in Pituitary Gland, External Approach

Typical Clinical Scenarios

A patient with a long-standing transsphenoidal pituitary catheter used for cerebrospinal fluid diversion presents electively for routine device exchange due to device malfunction detected on outpatient imaging and recurrent headaches. The patient is admitted for a planned exchange of the external-access drainage device using the existing transnasal tract without making a new skin or mucous membrane incision. Typical codes: 0G20X0Z
An adult with a prior pituitary procedure and an indwelling monitoring or external drainage apparatus develops device-related infection localized to the device tract but without need for open surgery; inpatient care is required to remove the contaminated device and replace it with a sterile like device via the same external approach to control infection and maintain drainage. Typical codes: 0G20X0Z
A hospitalized patient with pituitary region instrumentation from prior therapy experiences device failure of a non-drainage external component (for example, an external sensor or connector attached to the pituitary device system) causing loss of function; the device is removed and an identical or similar external device is placed through the existing access without creating a new incision. Typical codes: 0G20XYZ

Related Codes

0G21-PINEAL-BODY-CHANGE

ICD-10-PCS Code For Pineal Body: Procedure Code Group Overview

0G25-ADRENAL-GLAND-CHANGE

ICD-10-PCS Code For Adrenal Gland: Procedure Code Group Overview

0G2K-THYROID-GLAND-REVISION-THYROID-GLAND-CHANGE

ICD-10-PCS Code For Thyroid Gland: Procedure Code Group Overview

0G2R-PARATHYROID-GLAND-CHANGE

ICD-10-PCS Code For Parathyroid Gland: Procedure Code Group Overview

0G2S-ENDOCRINE-GLAND-CHANGE

ICD-10-PCS Code For Endocrine Gland: Procedure Code Group Overview

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

2 rows

ICD-10-PCS Code	Description
0G20X0Z	Change Drainage Device in Pituitary Gland, External Approach
0G20XYZ	Change Other Device in Pituitary Gland, External Approach

Typical Clinical Scenarios

A patient with a long-standing transsphenoidal pituitary catheter used for cerebrospinal fluid diversion presents electively for routine device exchange due to device malfunction detected on outpatient imaging and recurrent headaches. The patient is admitted for a planned exchange of the external-access drainage device using the existing transnasal tract without making a new skin or mucous membrane incision. Typical codes: 0G20X0Z
An adult with a prior pituitary procedure and an indwelling monitoring or external drainage apparatus develops device-related infection localized to the device tract but without need for open surgery; inpatient care is required to remove the contaminated device and replace it with a sterile like device via the same external approach to control infection and maintain drainage. Typical codes: 0G20X0Z
A hospitalized patient with pituitary region instrumentation from prior therapy experiences device failure of a non-drainage external component (for example, an external sensor or connector attached to the pituitary device system) causing loss of function; the device is removed and an identical or similar external device is placed through the existing access without creating a new incision. Typical codes: 0G20XYZ

Related Codes

0G21-PINEAL-BODY-CHANGE

ICD-10-PCS Code For Pineal Body: Procedure Code Group Overview

0G25-ADRENAL-GLAND-CHANGE

ICD-10-PCS Code For Adrenal Gland: Procedure Code Group Overview

0G2K-THYROID-GLAND-REVISION-THYROID-GLAND-CHANGE

ICD-10-PCS Code For Thyroid Gland: Procedure Code Group Overview

0G2R-PARATHYROID-GLAND-CHANGE

ICD-10-PCS Code For Parathyroid Gland: Procedure Code Group Overview

0G2S-ENDOCRINE-GLAND-CHANGE

ICD-10-PCS Code For Endocrine Gland: Procedure Code Group Overview

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 Pituitary Gland: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Pituitary Gland: Procedure Code Group Overview policy alerts

Pituitary Gland Change Procedure Overview

Code Attributes

ICD-10-PCS Code For Pituitary Gland: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Pituitary Gland: Procedure Code Group Overview policy alerts

Pituitary Gland Change Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What does ICD-10-PCS code group 0G20 represent?

Which body system and operation are indicated for codes in the 0G20 group?

What are examples of codes within the 0G20 group?

When should a 0G20 code be used for inpatient documentation?

Why is accurate coding within the 0G20 group important for reimbursement?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What does ICD-10-PCS code group 0G20 represent?

Which body system and operation are indicated for codes in the 0G20 group?

What are examples of codes within the 0G20 group?

When should a 0G20 code be used for inpatient documentation?

Why is accurate coding within the 0G20 group important for reimbursement?

References