MCMCB Pro
Z45.41

Z45.41Encounter for adjustment and management of cerebrospinal fluid drainage device

Billable / specific codeICD-10-CMPOA exempt

Z45.41 is a billable, specific ICD-10-CM code for encounter for adjustment and management of cerebrospinal fluid drainage device. 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 cerebral ventricular (communicating) shunt

Risk adjustment

Z45.41 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

Z45.41 is named in 1 Medicare coverage policy 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A56612Billing and Coding: CT of the Head

How Z45.41 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 Z45.41.

  • Managementcerebrospinal fluid drainage device
  • Admissionadjustmentdevice NECimplantednervous systemCSF drainage

Related codes at this level

Codes that share Z45.4. If Z45.41 is not quite right, the correct code is usually one of these.

Questions about Z45.41

Is Z45.41 a billable ICD-10-CM code?
Yes. Z45.41 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Z45.41 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.