ICD-10 Diagnosis Code Z91.048

Other nonmedicinal substance allergy status

Diagnosis Code Z91.048

ICD-10: Z91.048
Short Description: Other nonmedicinal substance allergy status
Long Description: Other nonmedicinal substance allergy status
This is the 2017 version of the ICD-10-CM diagnosis code Z91.048

Code Classification
  • Factors influencing health status and contact with health services
    • Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)
      • Personal risk factors, not elsewhere classified (Z91)

Information for Medical Professionals

Code Edits
The following edits are applicable to this code:
Unacceptable principal diagnosis Additional informationCallout TooltipUnacceptable principal diagnosis
There are selected codes that describe a circumstance which influences an individual’s health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

Present on Admission (POA) Additional informationCallout TooltipPresent on Admission
The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement.

The code Z91.048 is exempt from POA reporting.

  • Allergy to adhesive
  • Allergy to adhesive bandage
  • Allergy to fungus
  • Allergy to fungus
  • Allergy to mold
  • Allergy to nickel
  • Allergy to smut
  • History of allergic reaction to hair dye
  • Metal allergy

Information for Patients


Also called: Hypersensitivity

An allergy is a reaction by your immune system to something that does not bother most other people. People who have allergies often are sensitive to more than one thing. Substances that often cause reactions are

  • Pollen
  • Dust mites
  • Mold spores
  • Pet dander
  • Food
  • Insect stings
  • Medicines

Normally, your immune system fights germs. It is your body's defense system. In most allergic reactions, however, it is responding to a false alarm. Genes and the environment probably both play a role.

Allergies can cause a variety of symptoms such as a runny nose, sneezing, itching, rashes, swelling, or asthma. Allergies can range from minor to severe. Anaphylaxis is a severe reaction that can be life-threatening. Doctors use skin and blood tests to diagnose allergies. Treatments include medicines, allergy shots, and avoiding the substances that cause the reactions.

NIH: National Institute of Allergy and Infectious Diseases

  • Allergic reactions
  • Allergic rhinitis - self-care
  • Allergies
  • Allergies, asthma, and dust
  • Allergies, asthma, and molds
  • Allergy testing - skin
  • Angioedema
  • Antihistamines for allergies

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