2026 ICD-10-CM Diagnosis Code Z91.014Allergy to mammalian meats

ICD-10-CM Codes›Z00–Z99›Z77-Z99›Z91

ICD-10-CM Z91.014
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Z91.014 is a billable ICD-10-CM diagnosis code for allergy to mammalian meats. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is not accepted as a principal diagnosis by the Medicare Code Editor and exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified status.

Code Identity

ICD-10-CM Code
Z91.014
Billable Status
Yes — Valid for Submission
Code Describes
Allergy to mammalian meats
Short Description
Allergy to mammalian meats
Same as the full description in the CMS dataset.
Parent Code
Z91.012
Allergy to eggs

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ77-Z99Persons with potential health hazards related to family and personal history and certain conditions influencing health status
CategoryZ91Personal risk factors, not elsewhere classified
This CodeZ91.014Allergy to mammalian meats

Code EditsBilling

Medicare Code Editor checks that affect claim validity for Z91.014.

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.

Present on Admission (POA)Billing

Z91.014 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Allergy to beef
  • Allergy to beef due to alpha-gal syndrome
  • Allergy to cattle protein
  • Allergy to cetuximab due to alpha-gal syndrome
  • Allergy to galactose-alpha-1,3 galactose
  • Allergy to immunoglobulin
  • Allergy to meat
  • Allergy to pork
  • Allergy to red meat
  • Allergy to red meat due to alpha-gal syndrome
  • Alpha-gal syndrome

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Allergy to beef
  • Allergy to lamb
  • Allergy to pork
  • Allergy to red meats

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Allergy, allergic(reaction) (to)
      • food (any) (ingested) NEC
        • status (without reaction)
          • beef
    • Allergy, allergic(reaction) (to)
      • food (any) (ingested) NEC
        • status (without reaction)
          • lamb
    • Allergy, allergic(reaction) (to)
      • food (any) (ingested) NEC
        • status (without reaction)
          • mammalian meats
    • Allergy, allergic(reaction) (to)
      • food (any) (ingested) NEC
        • status (without reaction)
          • pork
    • Allergy, allergic(reaction) (to)
      • food (any) (ingested) NEC
        • status (without reaction)
          • red meats
    • History
      • personal (of)
        • allergy (to)
          • food
            • beef
    • History
      • personal (of)
        • allergy (to)
          • food
            • lamb
    • History
      • personal (of)
        • allergy (to)
          • food
            • mammalian meats
    • History
      • personal (of)
        • allergy (to)
          • food
            • pork
    • History
      • personal (of)
        • allergy (to)
          • food
            • red meats

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR FAC025
Other specified status
Default principal diagnosis: inpatient No · outpatient Yes

Code History & ChangesHistory

Replacement Z91.014 replaces the following previously assigned code(s):

  • Z91.018 - Allergy to other foods
FY 2022AddedAdded to the ICD-10-CM code setEffective October 1, 2021.
FY 2023–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Z91.014Overview

Is Z91.014 (Allergy to eggs) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report allergy to mammalian meats on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Can Z91.014 be a principal diagnosis?

No. The Medicare Code Editor rejects this code as a principal diagnosis because allergy to mammalian meats describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.

Is Z91.014 exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for allergy to mammalian meats on inpatient claims.