2026 ICD-10-CM Diagnosis Code Z46.1Encounter for fitting and adjustment of hearing aid
Z46.1 is a billable ICD-10-CM diagnosis code for encounter for fitting and adjustment of hearing aid. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 951. The code is not accepted as a principal diagnosis by the Medicare Code Editor and exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Implant, device or graft related encounter.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for Z46.1.
Present on Admission (POA)Billing
Z46.1 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).
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Type 1 Excludes
- encounter for adjustment and management of implanted hearing device Z45.32
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Admission (for) See Also: Encounter (for);
hearing aid Z46.1
hearing aid Z46.1
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 Z46.1 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About Z46.1Overview
What is the ICD-10 code for encounter for fitting and adjustment of hearing aid?
The ICD-10-CM code for encounter for fitting and adjustment of hearing aid is Z46.1 (sometimes written as Z461). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is Z46.1 (Encounter for fitting and adjustment of other devices) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report encounter for fitting and adjustment of hearing aid on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does Z46.1 group to?
On inpatient claims, encounter for fitting and adjustment of hearing aid maps to MS-DRG 951 (other Factors Influencing Health Status), which carries a relative weight of 0.556. Higher weights mean higher Medicare reimbursement.
Can Z46.1 be a principal diagnosis?
No. The Medicare Code Editor rejects this code as a principal diagnosis because encounter for fitting and adjustment of hearing aid describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.
Is Z46.1 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 fitting and adjustment of hearing aid on inpatient claims. The code appears in the Encounters for other specific health care (Z40-Z53) range of the CMS exempt list.
