ICD-10-CM Code Z91.018

Allergy to other foods

Version 2020 Billable Code Unacceptable Principal Diagnosis POA Exempt

Valid for Submission

Z91.018 is a billable code used to specify a medical diagnosis of allergy to other foods. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code Z91.018 might also be used to specify conditions or terms like allergy to almond, allergy to almond oil, allergy to apple juice, allergy to arachis oil, allergy to banana, allergy to barley, etc The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.

The code Z91.018 describes a circumstance which influences the patient's health status but not a current illness or injury. The code is unacceptable as a principal diagnosis.

ICD-10:Z91.018
Short Description:Allergy to other foods
Long Description:Allergy to other foods

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code Z91.018:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Allergy to nuts other than peanuts

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code Z91.018 are found in the index:


Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:

  • Unacceptable 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.

Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Allergy to almond
  • Allergy to almond oil
  • Allergy to apple juice
  • Allergy to Arachis oil
  • Allergy to banana
  • Allergy to barley
  • Allergy to bean
  • Allergy to beef
  • Allergy to caffeine
  • Allergy to carrot
  • Allergy to cashew nut
  • Allergy to celery
  • Allergy to cherry
  • Allergy to chicken meat
  • Allergy to chocolate
  • Allergy to cinnamon
  • Allergy to citrus fruit
  • Allergy to coconut oil
  • Allergy to corn
  • Allergy to dietary mushroom
  • Allergy to fenugreek
  • Allergy to fixed oil
  • Allergy to fixed oil
  • Allergy to fixed oil
  • Allergy to fruit
  • Allergy to gelatin
  • Allergy to hazelnut
  • Allergy to kiwi fruit
  • Allergy to legumes
  • Allergy to lupine seed
  • Allergy to macadamia nut
  • Allergy to mango fruit
  • Allergy to meat
  • Allergy to mustard seasoning
  • Allergy to nut
  • Allergy to oats
  • Allergy to olive oil
  • Allergy to peas
  • Allergy to phosphodiesterase inhibitor
  • Allergy to pineapple
  • Allergy to plasma substitutes
  • Allergy to poppy seed
  • Allergy to pork
  • Allergy to potato
  • Allergy to red meat
  • Allergy to rye
  • Allergy to seed
  • Allergy to soy protein
  • Allergy to strawberry
  • Allergy to tomato
  • Allergy to tree nut
  • Allergy to walnut
  • Allergy to watermelon
  • Allergy to wheat
  • Gastrointestinal hypersensitivity caused by food
  • History of food allergy
  • History of food hypersensitivity
  • Hypersensitivity gastroenteritis
  • Pollen-food allergy
  • Propensity to adverse reactions to food

Present on Admission (POA)

Z91.018 is exempt from POA reporting - 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. Review other POA exempt codes here .

CMS POA Indicator Options and Definitions
POA Indicator CodePOA Reason for CodeCMS will pay the CC/MCC DRG?
YDiagnosis was present at time of inpatient admission.YES
NDiagnosis was not present at time of inpatient admission.NO
UDocumentation insufficient to determine if the condition was present at the time of inpatient admission.NO
WClinically undetermined - unable to clinically determine whether the condition was present at the time of inpatient admission.YES
1Unreported/Not used - Exempt from POA reporting. NO

Convert Z91.018 to ICD-9

  • V15.05 - Hx-other food allergy (Approximate Flag)

Code Classification

  • Factors influencing health status and contact with health services (Z00–Z99)
    • 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)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


Food Allergy

Food allergy is an abnormal response to a food triggered by your body's immune system.

In adults, the foods that most often trigger allergic reactions include fish, shellfish, peanuts, and tree nuts, such as walnuts. Problem foods for children can include eggs, milk, peanuts, tree nuts, soy, and wheat.

The allergic reaction may be mild. In rare cases it can cause a severe reaction called anaphylaxis. Symptoms of food allergy include

  • Itching or swelling in your mouth
  • Vomiting, diarrhea, or abdominal cramps and pain
  • Hives or eczema
  • Tightening of the throat and trouble breathing
  • Drop in blood pressure

Your health care provider may use a detailed history, elimination diet, and skin and blood tests to diagnose a food allergy.

When you have food allergies, you must be prepared to treat an accidental exposure. Wear a medical alert bracelet or necklace, and carry an auto-injector device containing epinephrine (adrenaline).

You can only prevent the symptoms of food allergy by avoiding the food. After you and your health care provider have identified the foods to which you are sensitive, you must remove them from your diet.


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