Z91.A2

Caregiver's intentional underdosing of patient's medication regimen

Non-billable header

Z91.A2 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Includes (from Z91)

  • Note: 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:
  • Note: (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.
  • Note: (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.

Excludes2

Not included here — may be reported together when both conditions exist.

  • contact with and (suspected) exposures hazardous to health (Z77.-) (from Z91)
  • exposure to pollution and other problems related to physical environment (Z77.1-) (from Z91)
  • female genital mutilation status (N90.81-) (from Z91)
  • occupational exposure to risk factors (Z57.-) (from Z91)
  • personal history of physical injury and trauma (Z87.81, Z87.82-) (from Z91)

Code first

Sequence the underlying condition first.

  • underdosing of medication (T36-T50) with fifth or sixth character 6

Code also

An additional code may be needed.

  • any follow-up examination (Z08-Z09) (from Z91)

Parent code

  • Z91.ACaregiver's noncompliance with patient's medical treatment and regimenHeader

More specific codes Z91.A2

  • Z91.A20Caregiver's intentional underdosing of patient's medication regimen due to financial hardshipBillable
  • Z91.A28Caregiver's intentional underdosing of medication regimen for other reasonBillable

Related codes

  • Z91.A1Caregiver's noncompliance with patient's dietary regimenHeader
  • Z91.A3Caregiver's unintentional underdosing of patient's medication regimenBillable
  • Z91.A4Caregiver's other noncompliance with patient's medication regimenHeader
  • Z91.A5Caregiver's noncompliance with patient's renal dialysisHeader
  • Z91.A9Caregiver's noncompliance with patient's other medical treatment and regimenHeader

Browse