Z91.011

Allergy to milk products

Non-billable header

Z91.011 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.

Excludes1

Not coded here — never report together with this code.

  • lactose intolerance (E73.-)

Excludes2

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

  • food additives allergy status (Z91.02) (from Z91.01)
  • Allergy status to drugs, medicaments, and biological substances (Z88.-) (from Z91.0)
  • 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 also

An additional code may be needed.

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

Parent code

  • Z91.01Food allergy statusHeader

More specific codes Z91.011

  • Z91.0110Allergy to milk products, unspecifiedBillable
  • Z91.0111Allergy to milk products with tolerance to baked milkBillable
  • Z91.0112Allergy to milk products with reactivity to baked milkBillable

Related codes

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