MCMCB Pro
Z45.42

Z45.42Encounter for adjustment and management of neurostimulator

Billable / specific codeICD-10-CMPOA exempt

Z45.42 is a billable, specific ICD-10-CM code for encounter for adjustment and management of neurostimulator. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Encounter for adjustment and management of brain neurostimulator
  • Encounter for adjustment and management of gastric neurostimulator
  • Encounter for adjustment and management of peripheral nerve neurostimulator
  • Encounter for adjustment and management of sacral nerve neurostimulator
  • Encounter for adjustment and management of spinal cord neurostimulator
  • Encounter for adjustment and management of vagus nerve neurostimulator

Risk adjustment

Z45.42 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

Z45.42 is named in 3 Medicare coverage policies 3 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A53359Billing and Coding: Sacral Nerve Stimulation for Urinary and Fecal Incontinence
  • A57791Billing and Coding: Spinal Cord Stimulators for Chronic Pain
  • A59332Billing and Coding: Sacral Nerve Stimulation for the Treatment of Urinary and Fecal Incontinence

How Z45.42 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to Z45.42.

  • Aftercareneuropacemakerimplanted
  • Encounteradjustment and managementneurostimulator(brain) (gastric) (peripheral nerve) (sacral nerve) (spinal cord) (vagus nerve)
  • Fittingbrain neuropacemakerimplanted
  • Fittingneuropacemakerimplanted
  • Admissionadjustmentbrain neuropacemakerimplanted
  • Admissionadjustmentneuropacemakerimplanted
  • Admissionchange ofneuropacemaker deviceimplanted
  • Admissionfittingbrain neuropacemakerimplanted
  • Admissionfittingneuropacemakerimplanted
  • Admissionremoval ofneuropacemakerimplanted
  • Fittingpacemakernervous systemimplanted
  • Admissionadjustmentpacemakernervous systemimplanted

Related codes at this level

Codes that share Z45.4. If Z45.42 is not quite right, the correct code is usually one of these.

Questions about Z45.42

Is Z45.42 a billable ICD-10-CM code?
Yes. Z45.42 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Z45.42 sit in the tabular list?
Factors influencing health status and contact with health services (Z00-Z99), in the block Encounters for other specific health care (Z40-Z53).
ICD-10-CMFY2026-Apr· effective April 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.