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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group BG34 includes procedures performed to image the thyroid gland using magnetic resonance imaging. These ICD-10-PCS codes are used for inpatient documentation when magnetic resonance imaging of the thyroid gland is performed for diagnostic evaluation or treatment planning. Accurate coding within the ICD-10-PCS BG34 group is essential for proper inpatient reimbursement, as it captures the procedure performed and supports clinical documentation accuracy.

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Thyroid Gland Magnetic Resonance Imaging Procedure Overview

Procedures in this group involve magnetic resonance imaging of the thyroid gland within the endocrine system to generate multiplanar images from radiofrequency signals in a magnetic field. These imaging procedures capture detailed soft-tissue contrast of the thyroid to aid diagnosis and treatment planning. Accurate ICD-10-PCS coding is important for inpatient reimbursement because it documents the specific imaging service performed and supports appropriate case mix assignment.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
B	Section	Imaging
G	Body System	Endocrine System
3	Operation	Magnetic Resonance Imaging (MRI)
4	Body Part	Thyroid Gland

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

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Thyroid Gland Magnetic Resonance Imaging Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
B	Section	Imaging
G	Body System	Endocrine System
3	Operation	Magnetic Resonance Imaging (MRI)
4	Body Part	Thyroid Gland

When to Use

Use a code from this group when an inpatient undergoes magnetic resonance imaging specifically targeting the thyroid gland for diagnostic evaluation or treatment planning. Select the code that matches the imaging protocol and any contrast use or special imaging techniques documented.

ICD-10-PCS Codes

3 rows

ICD-10-PCS Code	Description
BG34Y0Z	Magnetic Resonance Imaging (MRI) of Thyroid Gland using Other Contrast, Unenhanced and Enhanced
BG34YZZ	Magnetic Resonance Imaging (MRI) of Thyroid Gland using Other Contrast
BG34ZZZ	Magnetic Resonance Imaging (MRI) of Thyroid Gland

Typical Clinical Scenarios

A middle-aged patient is admitted for evaluation of a rapidly enlarging neck mass with new dysphagia and hoarseness; inpatient workup is needed to assess local invasion of a suspected aggressive thyroid malignancy. High-resolution soft-tissue imaging is performed to delineate tumor extent and relationship to adjacent structures and may include contrast-enhanced sequences to better characterize vascularized tumor components. Typical codes: BG34Y0Z, BG34ZZZ
An elderly patient with known multinodular goiter and progressive compressive symptoms (stridor and orthopnea) is admitted for preoperative planning prior to thyroid surgery; detailed multiplanar imaging is required to map nodule number, size, and retrosternal extension. Magnetic resonance imaging of the thyroid is obtained to supplement ultrasound and CT when soft-tissue characterization and surgical approach planning are necessary, sometimes with contrast to improve lesion delineation. Typical codes: BG34Y0Z, BG34ZZZ
A young adult presents emergently after neck trauma with neck swelling and suspected thyroid hematoma causing airway compromise; the inpatient team needs imaging to evaluate hemorrhage, gland disruption, and extrathyroidal extension before intervention. MRI sequences, with or without contrast depending on renal function and clinical urgency, are used to define soft-tissue injury and guide surgical or interventional management. Typical codes: BG34YZZ, BG34ZZZ

ICD-10-PCS Code For Adrenal Glands, Bilateral: Procedure Code Group Overview

BG33-PARATHYROID-GLANDS-MAGNETIC-RESONANCE-IMAGING

ICD-10-PCS Code For Parathyroid Glands: 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

3 rows

ICD-10-PCS Code	Description
BG34Y0Z	Magnetic Resonance Imaging (MRI) of Thyroid Gland using Other Contrast, Unenhanced and Enhanced
BG34YZZ	Magnetic Resonance Imaging (MRI) of Thyroid Gland using Other Contrast
BG34ZZZ	Magnetic Resonance Imaging (MRI) of Thyroid Gland

Typical Clinical Scenarios

A middle-aged patient is admitted for evaluation of a rapidly enlarging neck mass with new dysphagia and hoarseness; inpatient workup is needed to assess local invasion of a suspected aggressive thyroid malignancy. High-resolution soft-tissue imaging is performed to delineate tumor extent and relationship to adjacent structures and may include contrast-enhanced sequences to better characterize vascularized tumor components. Typical codes: BG34Y0Z, BG34ZZZ
An elderly patient with known multinodular goiter and progressive compressive symptoms (stridor and orthopnea) is admitted for preoperative planning prior to thyroid surgery; detailed multiplanar imaging is required to map nodule number, size, and retrosternal extension. Magnetic resonance imaging of the thyroid is obtained to supplement ultrasound and CT when soft-tissue characterization and surgical approach planning are necessary, sometimes with contrast to improve lesion delineation. Typical codes: BG34Y0Z, BG34ZZZ
A young adult presents emergently after neck trauma with neck swelling and suspected thyroid hematoma causing airway compromise; the inpatient team needs imaging to evaluate hemorrhage, gland disruption, and extrathyroidal extension before intervention. MRI sequences, with or without contrast depending on renal function and clinical urgency, are used to define soft-tissue injury and guide surgical or interventional management. Typical codes: BG34YZZ, BG34ZZZ

ICD-10-PCS Code For Adrenal Glands, Bilateral: Procedure Code Group Overview

BG33-PARATHYROID-GLANDS-MAGNETIC-RESONANCE-IMAGING

ICD-10-PCS Code For Parathyroid Glands: 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.

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

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Thyroid Gland Magnetic Resonance Imaging Procedure Overview

Code Attributes

OpenPayer

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

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Thyroid Gland Magnetic Resonance Imaging Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

References

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

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

Thyroid Gland Magnetic Resonance Imaging Procedure Overview

Code Attributes

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

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

Thyroid Gland Magnetic Resonance Imaging Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in ICD-10-PCS code group BG34?

What is the primary operation and body system for BG34 codes?

How does accurate coding within BG34 affect inpatient processes?

What are the differences among the listed BG34 codes?

Under which ICD-10-PCS section are BG34 codes classified?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in ICD-10-PCS code group BG34?

What is the primary operation and body system for BG34 codes?

How does accurate coding within BG34 affect inpatient processes?

What are the differences among the listed BG34 codes?

Under which ICD-10-PCS section are BG34 codes classified?

References