1. Home
  2. ICD-10-CM Codes
  3. S00–T88
  4. T66-T78
  5. T78
  6. 2026 ICD-10-CM Code T78.11

2026 ICD-10-CM Diagnosis Code T78.11

Other adverse food reactions due to milk and dairy products

ICD-10-CM Code:
T78.11
ICD-10 Code for:
Other adverse food reactions due to milk and dairy products
Is Billable?
Not Valid for Submission
Code Navigator:

T78.11 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of other adverse food reactions due to milk and dairy products. The code is not specific and is NOT valid for the year 2026 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Other adverse food reactions due to milk and dairy products

Non-specific codes like T78.11 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for other adverse food reactions due to milk and dairy products:

  • T78.110 for Other adverse food reactions due to milk and dairy products with tolerance to baked milk - NON-BILLABLE CODE

  • Use T78.110A for initial encounter - BILLABLE CODE

  • Use T78.110D for subsequent encounter - BILLABLE CODE

  • Use T78.110S for sequela - BILLABLE CODE

  • T78.111 for Other adverse food reaction due to milk and dairy products with reactivity to baked milk - NON-BILLABLE CODE

  • Use T78.111A for initial encounter - BILLABLE CODE

  • Use T78.111D for subsequent encounter - BILLABLE CODE

  • Use T78.111S for sequela - BILLABLE CODE

  • T78.119 for Other adverse food reaction due to milk and dairy products with baked milk tolerance/reactivity, unspecified - NON-BILLABLE CODE

  • Use T78.119A for initial encounter - BILLABLE CODE

  • Use T78.119D for subsequent encounter - BILLABLE CODE

  • Use T78.119S for sequela - BILLABLE CODE

Code Classification

  • Injury, poisoning and certain other consequences of external causes
    S00–T88
    • Other and unspecified effects of external causes
      T66-T78
      • Adverse effects, not elsewhere classified
        T78

Coding Guidelines

The appropriate 7th character is to be added to each code from block Adverse effects, not elsewhere classified (T78). Use the following options for the aplicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Code History

  • FY 2026 - No Change, effective from 10/1/2025 through 9/30/2026