Z46.81 — Encounter for fitting and adjustment of insulin pump
Is Z46.81 billable?
Yes — Z46.81 is billable for FY2027. Z46.81 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. Z46.81 may be submitted for encounters from October 1, 2026 through September 30, 2027.
Z46.81 at a glance
| Code | Z46.81 |
|---|---|
| Description | Encounter for fitting and adjustment of insulin pump |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
What Medicare edits apply to Z46.81?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name Z46.81 directly.
CMS will reject this code as the principal diagnosis on an inpatient claim. It describes something other than the condition chiefly responsible for the admission.
Which MS-DRGs does Z46.81 group to?
Z46.81 sits in MDC 23 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 951Other Factors Influencing Health Statusmedical
How is Z46.81 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to Z46.81. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Counseling › insulin pump use (for)
- Encounter › insulin pump titration (with health service) (for)
- Encounter › titration, insulin pump (with health service) (for)
- Fitting › insulin pump (and adjustment) (of)
- Removal › insulin pump (from) (of)
- Counseling › use › insulin pump (for)
- Encounter › removal › insulin pump (with health service) (for)
- Encounter › training › insulin pump (with health service) (for)
Inclusion terms
Alternative wording in documentation that is classified to Z46.81.
- Encounter for insulin pump instruction and training
- Encounter for insulin pump titration
Excludes1 — never code together — inherited from Z46
The conditions below can never be reported together with Z46.81 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- malfunction or other complications of device - see Alphabetical Index
Excludes2 — not included here — inherited from Z40-Z53
The conditions below are not part of Z46.81, but a patient may have both at the same time. When documentation supports it, Z46.81 and the excluded code may both be reported.
- follow-up examination for medical surveillance after treatment (Z08-Z09)
Excludes2 — not included here — inherited from Z46
The conditions below are not part of Z46.81, but a patient may have both at the same time. When documentation supports it, Z46.81 and the excluded code may both be reported.
How long has Z46.81 existed?
Z46.81 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.