Z99.1

Dependence on respirator

FY2027Chapter 21: Factors influencing health status and contact with health services/Z77–Z99 Persons with potential health hazards related to family and personal history and certain conditions influencing health status

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

Z99.1 is a non-billable ICD-10-CM code header for dependence on respirator. 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 Z99.11 Dependence on respirator [ventilator] status and Z99.12 Encounter for respirator [ventilator] dependence during power failure. 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.

Guidelines I.C.21.c.3Status Z codesRead the official text

Code also

Two codes may be needed to describe the condition. This note gives no sequencing order.

Also from chapter/block level (1 note)
Inherited from Z77–Z99 Persons with potential health hazards related to family and personal history and certain conditions influencing health status
  • any follow-up examination (Z08-Z09)

Inclusion terms

Conditions classified to this code.

This code
  • Dependence on ventilator

Notes

Also from chapter/block level (3 notes)
Inherited from Chapter 21 Factors influencing health status and contact with health services
  • 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.

More specific codes under Z99.1 2