2026 ICD-10-CM Diagnosis Code Z45.41Encounter for adjustment and management of cerebrospinal fluid drainage device

ICD-10-CM Codes›Z00–Z99›Z40-Z53›Z45

ICD-10-CM Z45.41
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Z45.41 is a billable ICD-10-CM diagnosis code for encounter for adjustment and management of cerebrospinal fluid drainage device. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Implant, device or graft related encounter.

Code Identity

ICD-10-CM Code
Z45.41
Billable Status
Yes — Valid for Submission
Code Describes
Encounter for adjustment and management of cerebrospinal fluid drainage device
Short Description
Encounter for adjustment and management of CSF drain dev
Parent Code
Z45.4
Encounter for adjustment and management of implanted nervous system device

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ40-Z53Encounters for other specific health care
CategoryZ45Encounter for adjustment and management of implanted device
This CodeZ45.41Encounter for adjustment and management of cerebrospinal fluid drainage device

Present on Admission (POA)Billing

Z45.41 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Encounter for adjustment and management of cerebral ventricular (communicating) shunt

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Admission(for)
      • adjustment (of)
        • device NEC
          • implanted
            • nervous system
              • CSF drainage
    • Management(of)
      • cerebrospinal fluid drainage device

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR FAC009
Implant, device or graft related encounter
Default principal diagnosis: inpatient Yes · outpatient Yes

Convert Z45.41 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
V53.01 Adj cerebral vent shunt
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Z45.41Overview

Is Z45.41 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report encounter for adjustment and management of cerebrospinal fluid drainage device on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Is Z45.41 exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for encounter for adjustment and management of cerebrospinal fluid drainage device on inpatient claims.

What is the ICD-9 equivalent of Z45.41?

Under the General Equivalence Mappings, encounter for adjustment and management of cerebrospinal fluid drainage device converts to ICD-9-CM V53.01 (adj cerebral vent shunt). The mapping is a direct match.