Is Z99 a billable code?
No. Z99 is a header code that groups 7 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
Z99: Dependence on enabling machines and devices, not elsewhere classified
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
Z99 groups related diagnoses under dependence on enabling machines and devices, not elsewhere classified. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under Z99
- Z99.0Dependence on aspirator
- Z99.11Dependence on respirator [ventilator] status
- Z99.12Encounter for respirator [ventilator] dependence during power failure
- Z99.2Dependence on renal dialysis
- Z99.3Dependence on wheelchair
- Z99.81Dependence on supplemental oxygen
- Z99.89Dependence on other enabling machines and devices
Z99 questions
What does Z99 mean?
Z99 is the ICD-10-CM code for Dependence on enabling machines and devices, not elsewhere classified. It is in chapter 22, Factors influencing health status and contact with health services (Z00-Z99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.