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Z45.321

Z45.321: Encounter for adjustment and management of cochlear device

Billable / specific codeICD-10-CMPOA exempt

Z45.321 is a billable, specific ICD-10-CM code for encounter for adjustment and management of cochlear device. It is valid for submission on a claim.

Check Z45.321 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above Z45.321

A category’s note binds every code beneath it.

Written on Z45.32: Encounter for adjustment and management of implanted hearing device

  • Encounter for fitting and adjustment of hearing aid (Z46.1)

Written on Z45: Encounter for adjustment and management of implanted device

  • malfunction or other complications of device - see Alphabetical Index

Excludes2 inherited from the categories above Z45.321

Not part of this code, but both may be coded when both are present.

Written on Z45: Encounter for adjustment and management of implanted device

  • encounter for fitting and adjustment of non-implanted device (Z46.-)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

Z45.321 is named in 3 Medicare coverage policies: 3 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
  • A56773Billing and Coding: Neurophysiology Evoked Potentials (NEPs)
  • A57434Billing and Coding: Vestibular and Audiologic Function Studies

Alphabetic index entries that lead here

  • Management›cochlear device(implanted)
  • Admission›adjustment›device NEC›implanted›hearing device›cochlear

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under Z45.32

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.