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 BG44 includes procedures performed to image soft tissue structures in the thyroid gland. These ICD-10-PCS codes are used for inpatient documentation when real time ultrasonography is performed to visualize anatomy or flow information of the thyroid gland. Accurate coding within the ICD-10-PCS BG44 group is essential for proper inpatient reimbursement, as it captures the imaging procedure performed and supports clinical documentation accuracy.

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Thyroid Gland Ultrasonography Procedure Overview

This group includes procedures that use real time display of images developed from reflected high frequency sound waves to evaluate the thyroid gland within the endocrine system. Ultrasonography of the thyroid gland captures anatomic and flow information to assess nodules, enlargement, or vascularity. Accurate ICD-10-PCS coding is important for inpatient reimbursement because it documents the imaging procedure performed and supports appropriate case mix and payment.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
B	Section	Imaging
G	Body System	Endocrine System
4	Operation	Ultrasonography
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 Ultrasonography Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
B	Section	Imaging
G	Body System	Endocrine System
4	Operation	Ultrasonography
4	Body Part	Thyroid Gland

When to Use

Use a code from this group when inpatient care includes real time ultrasonography performed to evaluate the thyroid gland for nodules, enlargement, or vascular flow. Select the code when the documented operation is ultrasonography of the thyroid gland as part of the inpatient record.

ICD-10-PCS Codes

1 rows

ICD-10-PCS Code	Description
BG44ZZZ	Ultrasonography of Thyroid Gland

Typical Clinical Scenarios

A 68-year-old hospitalized patient with newly noted rapid enlargement of the anterior neck and compressive symptoms (dyspnea and voice changes) after recent radiation therapy undergoes inpatient evaluation to distinguish thyroid hemorrhage, aggressive nodule growth, or thyroiditis; real-time ultrasonography is performed at the bedside to assess gland size, nodules, and vascular flow to guide urgent medical or surgical management. Typical codes: BG44ZZZ
A 45-year-old admitted for endocrine workup of a recently discovered solitary thyroid nodule found on outpatient imaging, where inpatient observation and further characterization are planned due to suspicious ultrasound features and need for possible biopsy; inpatient real-time thyroid ultrasonography is used to evaluate nodule size, composition, and vascularity to inform next diagnostic steps. Typical codes: BG44ZZZ
A 30-year-old pregnant patient admitted with a painful, tender, and swollen thyroid consistent with subacute thyroiditis causing fever and significant thyrotoxic symptoms; real-time ultrasonography is performed inpatient to differentiate inflammatory changes from abscess or hemorrhagic cyst and to assess vascularity before initiating targeted therapy. Typical codes: BG44ZZZ

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

BG41-LEFT-ADRENAL-ULTRASONOGRAPHY

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

BG42-ADRENAL-GLANDS-ULTRASONOGRAPHY

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

BG43-PARATHYROID-GLANDS-ULTRASONOGRAPHY

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

1 rows

ICD-10-PCS Code	Description
BG44ZZZ	Ultrasonography of Thyroid Gland

Typical Clinical Scenarios

A 68-year-old hospitalized patient with newly noted rapid enlargement of the anterior neck and compressive symptoms (dyspnea and voice changes) after recent radiation therapy undergoes inpatient evaluation to distinguish thyroid hemorrhage, aggressive nodule growth, or thyroiditis; real-time ultrasonography is performed at the bedside to assess gland size, nodules, and vascular flow to guide urgent medical or surgical management. Typical codes: BG44ZZZ
A 45-year-old admitted for endocrine workup of a recently discovered solitary thyroid nodule found on outpatient imaging, where inpatient observation and further characterization are planned due to suspicious ultrasound features and need for possible biopsy; inpatient real-time thyroid ultrasonography is used to evaluate nodule size, composition, and vascularity to inform next diagnostic steps. Typical codes: BG44ZZZ
A 30-year-old pregnant patient admitted with a painful, tender, and swollen thyroid consistent with subacute thyroiditis causing fever and significant thyrotoxic symptoms; real-time ultrasonography is performed inpatient to differentiate inflammatory changes from abscess or hemorrhagic cyst and to assess vascularity before initiating targeted therapy. Typical codes: BG44ZZZ

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

BG41-LEFT-ADRENAL-ULTRASONOGRAPHY

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

BG42-ADRENAL-GLANDS-ULTRASONOGRAPHY

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

BG43-PARATHYROID-GLANDS-ULTRASONOGRAPHY

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 Ultrasonography Procedure Overview

Code Attributes

OpenPayer

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

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Thyroid Gland Ultrasonography 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 Ultrasonography 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 Ultrasonography Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What procedures are included in the BG44 code group?

Which ICD-10-PCS code represents ultrasonography of the thyroid gland?

In which ICD-10-PCS section and body system is BG44 classified?

Why is accurate coding of `BG44ZZZ` important for inpatient documentation?

What clinical information does thyroid ultrasonography capture?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What procedures are included in the BG44 code group?

Which ICD-10-PCS code represents ultrasonography of the thyroid gland?

In which ICD-10-PCS section and body system is BG44 classified?

Why is accurate coding of `BG44ZZZ` important for inpatient documentation?

What clinical information does thyroid ultrasonography capture?

References