Z99.12 — Encounter for respirator [ventilator] dependence during power failure
Is Z99.12 billable?
Yes — Z99.12 is billable for FY2027. Z99.12 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. Z99.12 may be submitted for encounters from October 1, 2026 through September 30, 2027.
Z99.12 at a glance
| Code | Z99.12 |
|---|---|
| Description | Encounter for respirator [ventilator] dependence during power failure |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does Z99.12 group to?
Z99.12 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
As a secondary diagnosis, Z99.12 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is Z99.12 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to Z99.12. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Admission › respirator [ventilator] use during power failure (for)
- Encounter › respirator [ventilator] use during power failure (with health service) (for)
Excludes1 — never code together
The conditions below can never be reported together with Z99.12 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- mechanical complication of respirator [ventilator] (J95.850)
Code also — inherited from Z77-Z99
Two codes may be needed to describe the condition fully. Whether Z99.12 is sequenced first depends on the reason for the encounter.
- any follow-up examination (Z08-Z09)
How long has Z99.12 existed?
Z99.12 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.