Z29.1 — Encounter for prophylactic immunotherapy
Not billable
Is Z29.1 billable?
No — Z29.1 is a non-billable header code. Z29.1 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 4 billable codes beneath Z29.1.
Z29.1 at a glance
| Code | Z29.1 |
|---|---|
| Description | Encounter for prophylactic immunotherapy |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Inclusion terms
Alternative wording in documentation that is classified to Z29.1.
- Encounter for administration of immunoglobulin
Excludes1 — never code together — inherited from Z29
The conditions below can never be reported together with Z29.1 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
What codes fall under Z29.1? (4)
How long has Z29.1 existed?
Z29.1 first appears in FY2018 (FY2017 is not available, so it may have appeared then).
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.