Z16.1 — Resistance to beta lactam antibiotics
Is Z16.1 billable?
No — Z16.1 is a non-billable header code. Z16.1 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 5 billable codes beneath Z16.1.
Z16.1 at a glance
| Code | Z16.1 |
|---|---|
| Description | Resistance to beta lactam antibiotics |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together — inherited from Z16
The conditions below can never be reported together with Z16.1 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Code first — inherited from Z16
The underlying condition below must be sequenced before Z16.1. Z16.1 describes a manifestation and cannot be the principal or first-listed diagnosis.
- the infection
What codes fall under Z16.1? (5)
How long has Z16.1 existed?
Z16.1 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.