2027 ICD-10-CM Diagnosis Code Z45.328Encounter for adjustment and management of other implanted hearing device
Z45.328 is a billable ICD-10-CM diagnosis code for encounter for adjustment and management of other implanted hearing device. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 154 through 156. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Hearing loss; and Implant, device or graft related encounter.
Code Identity
Code Classification
Present on Admission (POA)Billing
Z45.328 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Encounters for other specific health care (Z40-Z53).
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to Z45.328: its own notes plus those printed at Z45.32, Z45, block Z40-Z53, and Chapter 21. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- removal or replacement of implanted device
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
- Encounter for fitting and adjustment of hearing aid (Z46.1)
- malfunction or other complications of device - see Alphabetical Index
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- encounter for fitting and adjustment of non-implanted device (Z46.-)
Notes
General instructions on how these codes are used.
- Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
- (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
- (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name Z45.328, its category, or a range that includes it.
Excludes1 2
These codes carry an Excludes1 note naming Z45.328: they are not reported together with it, unless the two conditions are unrelated.
Excludes2 5
These codes carry an Excludes2 note naming Z45.328: its condition is not part of those codes, and both may be reported when the patient has both.
- Z46 Encounter for fitting and adjustment of other devicesencounter for fitting and management of implanted devices (Z45.-) names Z45.-, which includes this code
- Z43 Encounter for attention to artificial openings
- Z48 Encounter for other postprocedural aftercare
- Z96 Presence of other functional implants
- Z97 Presence of other devices
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Admission (for) See Also: Encounter (for);
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Hearing Aids
A hearing aid is a small electronic device that you wear in or behind your ear. It makes some sounds louder. A hearing aid can help people hear more in both quiet and noisy situations.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert Z45.328 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About Z45.328Overview
Is Z45.328 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report encounter for adjustment and management of other implanted hearing device on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does Z45.328 group to?
When encounter for adjustment and management of other implanted hearing device is the principal diagnosis on an inpatient stay, it groups to MS-DRG 156, 155, 154, with relative weights from 0.6656 to 1.5916 depending on complications. Higher weights mean higher Medicare reimbursement.
Is Z45.328 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 other implanted hearing device on inpatient claims. The code appears in the Encounters for other specific health care (Z40-Z53) range of the CMS exempt list.
Can Z45.328 be reported with Z46.1?
Not as a rule. The Excludes1 note at Z45.32, which applies to Z45.328, lists "Encounter for fitting and adjustment of hearing aid (Z46.1)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
What is the ICD-9 equivalent of Z45.328?
Under the General Equivalence Mappings, encounter for adjustment and management of other implanted hearing device converts to ICD-9-CM V53.09 (adj nerv syst device NEC). The mapping is approximate, so confirm the match fits the documentation.
