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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group DG21 includes procedures performed to stereotactically treat lesions or abnormalities in the pineal body. These ICD-10-PCS codes are used for inpatient documentation when stereotactic radiosurgery is performed on the pineal body for diagnostic or therapeutic purposes. Accurate coding within the ICD-10-PCS DG21 group is essential for proper inpatient reimbursement, as it captures the procedure performed and supports clinical documentation accuracy.

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Pineal Body Stereotactic Radiosurgery Procedure Overview

This procedure group includes stereotactic radiosurgery interventions targeting the pineal body within the endocrine system. Procedures in this group deliver precise, high-dose radiation to lesions or abnormalities of the pineal body using stereotactic guidance. Accurate ICD-10-PCS coding is important for inpatient reimbursement because it documents the specific operation, body system, and body part treated and supports correct case mix and payment.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
D	Section	Radiation Therapy
G	Body System	Endocrine System
2	Operation	Stereotactic Radiosurgery
1	Body Part	Pineal Body

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

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Pineal Body Stereotactic Radiosurgery Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
D	Section	Radiation Therapy
G	Body System	Endocrine System
2	Operation	Stereotactic Radiosurgery
1	Body Part	Pineal Body

When to Use

Use a code from this group when stereotactic radiosurgery is performed on the pineal body during an inpatient encounter. Codes in this group are appropriate when focused high-dose radiation, guided by stereotactic methods, is used for therapeutic or palliative management of pineal body pathology.

ICD-10-PCS Codes

3 rows

ICD-10-PCS Code	Description
DG21DZZ	Stereotactic Other Photon Radiosurgery of Pineal Body
DG21HZZ	Stereotactic Particulate Radiosurgery of Pineal Body
DG21JZZ	Stereotactic Gamma Beam Radiosurgery of Pineal Body

DRG Codes

12 rows

DRG Code	Description
040	Peripheral, Cranial Nerve and Other Nervous System Procedures with MCC
041	Peripheral, Cranial Nerve and Other Nervous System Procedures with CC or Peripheral Neurostimulator
042	Peripheral, Cranial Nerve and Other Nervous System Procedures without CC/MCC
628	Other Endocrine, Nutritional and Metabolic O.R. Procedures with MCC
629	Other Endocrine, Nutritional and Metabolic O.R. Procedures with CC
630	Other Endocrine, Nutritional and Metabolic O.R. Procedures without CC/MCC
823	Lymphoma and Non-Acute Leukemia with Other Procedures with MCC
824	Lymphoma and Non-Acute Leukemia with Other Procedures with CC
825	Lymphoma and Non-Acute Leukemia with Other Procedures without CC/MCC
829	Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Other Procedures with CC/MCC

Showing 1–10 of 12

Typical Clinical Scenarios

A 55-year-old patient presents with acute neurologic symptoms including headache, hydrocephalus, and Parinaud syndrome caused by a radiographically confirmed pineal region tumor presumed to be a radiosensitive lesion; neurosurgery and radiation oncology determine immediate stereotactic radiosurgery is indicated during the inpatient stay to rapidly control tumor mass effect and reduce CSF obstruction risk. Typical codes: DG21DZZ, DG21JZZ
A 38-year-old patient with a small, well-demarcated pineal cyst causing intermittent diplopia and progressive symptoms is admitted electively for multidisciplinary planning and delivery of image-guided, high-dose focused radiation as a definitive, noninvasive treatment option to avoid open resection. Typical codes: DG21JZZ, DG21DZZ
A 67-year-old patient with recurrent pineal region metastasis after prior conventional whole-brain radiation is admitted for salvage stereotactic particulate radiosurgery to target a discrete recurrent lesion while sparing surrounding tissue; the inpatient procedure is chosen because of prior treatments and comorbidities that preclude repeat surgery. Typical codes: DG21HZZ, DG21DZZ

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

DG22-ADRENAL-GLANDS-STEREOTACTIC-RADIOSURGERY

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

DG24-PARATHYROID-GLANDS-STEREOTACTIC-RADIOSURGERY

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

DG25-THYROID-STEREOTACTIC-RADIOSURGERY

ICD-10-PCS Code For Thyroid: 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
DG21DZZ	Stereotactic Other Photon Radiosurgery of Pineal Body
DG21HZZ	Stereotactic Particulate Radiosurgery of Pineal Body
DG21JZZ	Stereotactic Gamma Beam Radiosurgery of Pineal Body

DRG Codes

12 rows

DRG Code	Description
040	Peripheral, Cranial Nerve and Other Nervous System Procedures with MCC
041	Peripheral, Cranial Nerve and Other Nervous System Procedures with CC or Peripheral Neurostimulator
042	Peripheral, Cranial Nerve and Other Nervous System Procedures without CC/MCC
628	Other Endocrine, Nutritional and Metabolic O.R. Procedures with MCC
629	Other Endocrine, Nutritional and Metabolic O.R. Procedures with CC
630	Other Endocrine, Nutritional and Metabolic O.R. Procedures without CC/MCC
823	Lymphoma and Non-Acute Leukemia with Other Procedures with MCC
824	Lymphoma and Non-Acute Leukemia with Other Procedures with CC
825	Lymphoma and Non-Acute Leukemia with Other Procedures without CC/MCC
829	Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Other Procedures with CC/MCC

Showing 1–10 of 12

Typical Clinical Scenarios

A 55-year-old patient presents with acute neurologic symptoms including headache, hydrocephalus, and Parinaud syndrome caused by a radiographically confirmed pineal region tumor presumed to be a radiosensitive lesion; neurosurgery and radiation oncology determine immediate stereotactic radiosurgery is indicated during the inpatient stay to rapidly control tumor mass effect and reduce CSF obstruction risk. Typical codes: DG21DZZ, DG21JZZ
A 38-year-old patient with a small, well-demarcated pineal cyst causing intermittent diplopia and progressive symptoms is admitted electively for multidisciplinary planning and delivery of image-guided, high-dose focused radiation as a definitive, noninvasive treatment option to avoid open resection. Typical codes: DG21JZZ, DG21DZZ
A 67-year-old patient with recurrent pineal region metastasis after prior conventional whole-brain radiation is admitted for salvage stereotactic particulate radiosurgery to target a discrete recurrent lesion while sparing surrounding tissue; the inpatient procedure is chosen because of prior treatments and comorbidities that preclude repeat surgery. Typical codes: DG21HZZ, DG21DZZ

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

DG22-ADRENAL-GLANDS-STEREOTACTIC-RADIOSURGERY

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

DG24-PARATHYROID-GLANDS-STEREOTACTIC-RADIOSURGERY

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

DG25-THYROID-STEREOTACTIC-RADIOSURGERY

ICD-10-PCS Code For Thyroid: 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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OpenPayer

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

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Pineal Body Stereotactic Radiosurgery Procedure Overview

Code Attributes

OpenPayer

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

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Pineal Body Stereotactic Radiosurgery Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

References

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

Sign up for ICD-10-PCS Code For Pineal Body: Procedure Code Group Overview policy alerts

Pineal Body Stereotactic Radiosurgery Procedure Overview

Code Attributes

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

Sign up for ICD-10-PCS Code For Pineal Body: Procedure Code Group Overview policy alerts

Pineal Body Stereotactic Radiosurgery Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS section and body system apply to pineal body stereotactic radiosurgery in this group?

What operations and body part are represented by codes in the DG21 group?

What are the individual ICD-10-PCS codes included in the DG21 group?

How does accurate coding in the DG21 group affect inpatient reimbursement?

Which DRG categories may be related to procedures coded in the DG21 group?

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS section and body system apply to pineal body stereotactic radiosurgery in this group?

What operations and body part are represented by codes in the DG21 group?

What are the individual ICD-10-PCS codes included in the DG21 group?

How does accurate coding in the DG21 group affect inpatient reimbursement?

Which DRG categories may be related to procedures coded in the DG21 group?

References