Z99
Dependence on enabling machines and devices, not elsewhere classified
Z99 is a non-billable ICD-10-CM code category for dependence on enabling machines and devices, not elsewhere classified. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are Z99.0 Dependence on aspirator, Z99.1 Dependence on respirator, Z99.2 Dependence on renal dialysis, Z99.3 Dependence on wheelchair and 1 more. Its coding notes include a Code also instruction.
Guidelines tip
From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.
A status code is not the same as a history code. It is not added when the diagnosis code already includes the status.
Code also
Two codes may be needed to describe the condition. This note gives no sequencing order.
Also from chapter/block level (1 note)
- any follow-up examination (Z08-Z09)
Notes
Also from chapter/block level (3 notes)
- Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
- (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
- (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.