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Home / ICD-10-CM / Chapter 21: 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)

Z91.0112: Allergy to milk products with reactivity to baked milk

ICD-10-CM code Z91.0112

New code ยท FY2026

Billable: use this code on claims.

  • New code, effective October 1, 2025 (FY2026).

Code breakdown

Z91.0112

  1. Z91CategoryPersonal risk factors, not elsewhere classified
  2. 0Character 4Allergy status, other than to drugs and biological substances
  3. 1Character 5Food allergy status
  4. 1Character 6Allergy to milk products
  5. 2Character 7Allergy to milk products with reactivity to baked milk

Coding notes

Excludes1

  • Allergy to milk products with tolerance to baked milk (Z91.0111)

Excludes1 (from Z91.011)

  • lactose intolerance (E73.-)

Excludes2 (from Z91.01)

  • food additives allergy status (Z91.02)

Excludes2 (from Z91.0)

  • Allergy status to drugs, medicaments, and biological substances (Z88.-)

Medicare coverage

Z91.0112 is listed as a covered diagnosis in 8 Medicare billing and coding articles:

  • A56558 Billing and Coding: Allergy Testing
  • A57043 Billing and Coding: RAST Type Tests
  • A57531 Billing and Coding: Allergy Testing
  • A60361 Billing and Coding: Allergy Diagnostic Testing
  • A60364 Billing and Coding: Allergy Diagnostic Testing
  • A60375 Billing and Coding: Allergy Diagnostic Testing
  • A60377 Billing and Coding: Allergy Diagnostic Testing
  • A60391 Billing and Coding: Allergy Diagnostic Testing

Check this code

All FY2026 ICD-10-CM changes

ICD-10-CM codes and descriptions are from the CMS and NCHS code files. Coverage is from the CMS Medicare Coverage Database billing and coding articles.