ICD-10-PCS Code For Cerebrospinal Fluid: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group C025 includes procedures performed to image cerebrospinal fluid in the central nervous system using tomographic nuclear medicine techniques. These ICD-10-PCS codes are used for inpatient documentation when three-dimensional imaging of cerebrospinal fluid flow or distribution is performed with introduction of radioactive materials. Accurate coding within the ICD-10-PCS C025 group is essential for proper inpatient reimbursement, as it captures the specific nuclear medicine imaging procedure performed and supports clinical documentation accuracy.

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Cerebrospinal Fluid Tomographic Nuclear Medicine Imaging Procedure Overview

This procedure group includes tomographic nuclear medicine imaging studies that involve introduction of radioactive materials to capture three-dimensional images of cerebrospinal fluid and related central nervous system spaces. These studies target the central nervous system and use radionuclide tracers to visualize cerebrospinal fluid flow or distribution. Accurate ICD-10-PCS coding ensures inpatient records reflect the specific imaging technique performed and supports appropriate reimbursement for nuclear medicine services.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
0	Body System	Central Nervous System
2	Operation	Tomographic (Tomo) Nuclear Medicine Imaging
5	Body Part	Cerebrospinal Fluid

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ICD-10-PCS Code For Cerebrospinal Fluid: Procedure Code Group Overview

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Cerebrospinal Fluid Tomographic Nuclear Medicine Imaging Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
0	Body System	Central Nervous System
2	Operation	Tomographic (Tomo) Nuclear Medicine Imaging
5	Body Part	Cerebrospinal Fluid

When to Use

Use a code from this group when a patient undergoes tomographic nuclear medicine imaging involving introduction of radioactive material specifically to visualize cerebrospinal fluid in the central nervous system. These codes apply when the clinical intent is three-dimensional assessment of cerebrospinal fluid dynamics or compartmental distribution using radionuclide techniques.

ICD-10-PCS Codes

2 rows

ICD-10-PCS Code	Description
C025DZZ	Tomographic (Tomo) Nuclear Medicine Imaging of Cerebrospinal Fluid using Indium 111 (In-111)
C025YZZ	Tomographic (Tomo) Nuclear Medicine Imaging of Cerebrospinal Fluid using Other Radionuclide

Typical Clinical Scenarios

An elderly patient is admitted with suspected normal pressure hydrocephalus presenting with progressive gait disturbance, urinary incontinence, and cognitive decline. To assess cerebrospinal fluid flow dynamics and determine candidacy for shunting, tomographic nuclear medicine imaging is performed after intrathecal administration of Indium-111 radiotracer to visualize CSF distribution over time. The study aims to demonstrate delayed clearance or abnormal CSF flow patterns that support surgical planning. Typical codes: C025DZZ
A hospitalized patient with subarachnoid hemorrhage develops worsening headache and concerns for communicating hydrocephalus; clinicians need rapid assessment of CSF flow to guide management of external ventricular drain settings. Tomographic nuclear medicine imaging using a non-Indium radiotracer is performed intrathecally to three-dimensionally evaluate CSF circulation and identify areas of flow obstruction or CSF compartmentalization influencing urgent treatment decisions. Typical codes: C025YZZ
A patient with a prior ventriculoperitoneal shunt presents with recurrent symptoms suggestive of shunt malfunction despite normal proximal imaging. To differentiate shunt obstruction from altered CSF dynamics, a tomographic nuclear medicine study is ordered to track CSF movement after intrathecal injection of Indium-111, allowing three-dimensional assessment of tracer transit through shunt pathways and identification of functional failure. Typical codes: C025DZZ

Related Codes

C020-BRAIN-TOMOGRAPHIC-IMAGING

ICD-10-PCS Code For Brain: Procedure Code Group Overview

C02Y-CENTRAL-NERVOUS-SYSTEM-TOMOGRAPHIC-IMAGING

ICD-10-PCS Code For Central Nervous System: 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
C025DZZ	Tomographic (Tomo) Nuclear Medicine Imaging of Cerebrospinal Fluid using Indium 111 (In-111)
C025YZZ	Tomographic (Tomo) Nuclear Medicine Imaging of Cerebrospinal Fluid using Other Radionuclide

Typical Clinical Scenarios

An elderly patient is admitted with suspected normal pressure hydrocephalus presenting with progressive gait disturbance, urinary incontinence, and cognitive decline. To assess cerebrospinal fluid flow dynamics and determine candidacy for shunting, tomographic nuclear medicine imaging is performed after intrathecal administration of Indium-111 radiotracer to visualize CSF distribution over time. The study aims to demonstrate delayed clearance or abnormal CSF flow patterns that support surgical planning. Typical codes: C025DZZ
A hospitalized patient with subarachnoid hemorrhage develops worsening headache and concerns for communicating hydrocephalus; clinicians need rapid assessment of CSF flow to guide management of external ventricular drain settings. Tomographic nuclear medicine imaging using a non-Indium radiotracer is performed intrathecally to three-dimensionally evaluate CSF circulation and identify areas of flow obstruction or CSF compartmentalization influencing urgent treatment decisions. Typical codes: C025YZZ
A patient with a prior ventriculoperitoneal shunt presents with recurrent symptoms suggestive of shunt malfunction despite normal proximal imaging. To differentiate shunt obstruction from altered CSF dynamics, a tomographic nuclear medicine study is ordered to track CSF movement after intrathecal injection of Indium-111, allowing three-dimensional assessment of tracer transit through shunt pathways and identification of functional failure. Typical codes: C025DZZ

Related Codes

C020-BRAIN-TOMOGRAPHIC-IMAGING

ICD-10-PCS Code For Brain: Procedure Code Group Overview

C02Y-CENTRAL-NERVOUS-SYSTEM-TOMOGRAPHIC-IMAGING

ICD-10-PCS Code For Central Nervous System: 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 Cerebrospinal Fluid: Procedure Code Group Overview

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Cerebrospinal Fluid Tomographic Nuclear Medicine Imaging Procedure Overview

Code Attributes

ICD-10-PCS Code For Cerebrospinal Fluid: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Cerebrospinal Fluid: Procedure Code Group Overview policy alerts

Cerebrospinal Fluid Tomographic Nuclear Medicine Imaging Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What procedures are included in the C025 ICD-10-PCS group?

Which ICD-10-PCS codes are in the C025 group and how are they specified?

What section, body system, and operation values apply to the C025 code group?

How does accurate coding within the C025 group affect inpatient records and billing?

Are there related DRGs listed for the C025 cerebrospinal fluid imaging codes?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What procedures are included in the C025 ICD-10-PCS group?

Which ICD-10-PCS codes are in the C025 group and how are they specified?

What section, body system, and operation values apply to the C025 code group?

How does accurate coding within the C025 group affect inpatient records and billing?

Are there related DRGs listed for the C025 cerebrospinal fluid imaging codes?

References