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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group BG33 includes procedures performed to image parathyroid glands using magnetic resonance imaging. These ICD-10-PCS codes are used for inpatient documentation when magnetic resonance imaging is performed to evaluate or localize parathyroid pathology. Accurate coding within the ICD-10-PCS BG33 group is essential for proper inpatient reimbursement, as it captures the imaging procedure performed and supports clinical documentation accuracy.

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Parathyroid Glands Magnetic Resonance Imaging Procedure Overview

This group includes magnetic resonance imaging procedures of the parathyroid glands within the endocrine system. These procedures use magnetic resonance imaging to produce reformatted multiplanar images for diagnosis and localization of parathyroid pathology. Accurate ICD-10-PCS coding ensures inpatient documentation reflects the imaging performed and supports correct reimbursement for imaging services. Proper coding also helps maintain clear clinical records for endocrine-related diagnostic workups.

Code Attributes

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

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

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Parathyroid Glands 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)
3	Body Part	Parathyroid Glands

When to Use

Use a code from this group when inpatient magnetic resonance imaging is performed specifically to evaluate or localize parathyroid gland pathology. Select the code when the procedure involves the capture and digital reformatting of multiplanar MR images of the parathyroid glands.

ICD-10-PCS Codes

3 rows

ICD-10-PCS Code	Description
BG33Y0Z	Magnetic Resonance Imaging (MRI) of Parathyroid Glands using Other Contrast, Unenhanced and Enhanced
BG33YZZ	Magnetic Resonance Imaging (MRI) of Parathyroid Glands using Other Contrast
BG33ZZZ	Magnetic Resonance Imaging (MRI) of Parathyroid Glands

Typical Clinical Scenarios

A 68-year-old patient is admitted with symptomatic primary hyperparathyroidism identified by hypercalcemia and nephrolithiasis; preoperative localization is needed to guide inpatient surgical planning for parathyroidectomy, so high-resolution MR imaging of the parathyroid glands is performed to identify an adenoma or ectopic gland. Typical codes: BG33ZZZ
A 42-year-old patient with recurrent neck swelling and persistent elevated parathyroid hormone after prior neck surgery is evaluated inpatient for suspected recurrent or residual parathyroid tissue; MR imaging is used to produce multiplanar reformatted images to localize scarred or ectopic glands that are not well visualized on ultrasound or nuclear medicine studies. Typical codes: BG33YZZ, BG33ZZZ
An elderly patient presents to the hospital with acute severe hypercalcemia and altered mental status; after stabilization, inpatient MR imaging of the parathyroid glands is ordered to assess for an active parathyroid lesion as part of the urgent diagnostic workup to direct timely management. Typical codes: BG33Y0Z, BG33ZZZ

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

BG34-THYROID-GLAND-MAGNETIC-RESONANCE-IMAGING

ICD-10-PCS Code For Thyroid 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

3 rows

ICD-10-PCS Code	Description
BG33Y0Z	Magnetic Resonance Imaging (MRI) of Parathyroid Glands using Other Contrast, Unenhanced and Enhanced
BG33YZZ	Magnetic Resonance Imaging (MRI) of Parathyroid Glands using Other Contrast
BG33ZZZ	Magnetic Resonance Imaging (MRI) of Parathyroid Glands

Typical Clinical Scenarios

A 68-year-old patient is admitted with symptomatic primary hyperparathyroidism identified by hypercalcemia and nephrolithiasis; preoperative localization is needed to guide inpatient surgical planning for parathyroidectomy, so high-resolution MR imaging of the parathyroid glands is performed to identify an adenoma or ectopic gland. Typical codes: BG33ZZZ
A 42-year-old patient with recurrent neck swelling and persistent elevated parathyroid hormone after prior neck surgery is evaluated inpatient for suspected recurrent or residual parathyroid tissue; MR imaging is used to produce multiplanar reformatted images to localize scarred or ectopic glands that are not well visualized on ultrasound or nuclear medicine studies. Typical codes: BG33YZZ, BG33ZZZ
An elderly patient presents to the hospital with acute severe hypercalcemia and altered mental status; after stabilization, inpatient MR imaging of the parathyroid glands is ordered to assess for an active parathyroid lesion as part of the urgent diagnostic workup to direct timely management. Typical codes: BG33Y0Z, BG33ZZZ

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

BG34-THYROID-GLAND-MAGNETIC-RESONANCE-IMAGING

ICD-10-PCS Code For Thyroid 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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ICD-10-PCS Code For Parathyroid Glands: Procedure Code Group Overview

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Parathyroid Glands Magnetic Resonance Imaging Procedure Overview

Code Attributes

OpenPayer

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

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Parathyroid Glands 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 Parathyroid Glands: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Parathyroid Glands: Procedure Code Group Overview policy alerts

Parathyroid Glands Magnetic Resonance Imaging Procedure Overview

Code Attributes

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

Sign up for ICD-10-PCS Code For Parathyroid Glands: Procedure Code Group Overview policy alerts

Parathyroid Glands Magnetic Resonance Imaging Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the BG33 ICD-10-PCS code group?

What are the specific ICD-10-PCS codes listed in BG33?

Under which section and body system do BG33 procedures fall in ICD-10-PCS?

How does accurate coding in BG33 affect inpatient documentation and reimbursement?

When should BG33 MRI codes be used in patient records?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the BG33 ICD-10-PCS code group?

What are the specific ICD-10-PCS codes listed in BG33?

Under which section and body system do BG33 procedures fall in ICD-10-PCS?

How does accurate coding in BG33 affect inpatient documentation and reimbursement?

When should BG33 MRI codes be used in patient records?

References