T78.110 vs T78.111
T78.110 (Other adverse food reactions due to milk and dairy products with tolerance to baked milk) compared with T78.111 (Other adverse food reaction due to milk and dairy products with reactivity to baked milk), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. T78.110 carries an Excludes1 note covering T78.111: “Other adverse food reaction due to milk and dairy products with reactivity to baked milk (T78.111)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. T78.111 carries an Excludes1 note covering T78.110: “Other adverse food reaction due to milk and dairy products with tolerance to baked milk (T78.110)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| T78.110Other adverse food reactions due to milk and dairy products with tolerance to baked milk | T78.111Other adverse food reaction due to milk and dairy products with reactivity to baked milk | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) |
| Definition | Other adverse food reactions due to milk and dairy products with tolerance to baked milk is a non-billable ICD-10-CM category code (T78.110). | Other adverse food reaction due to milk and dairy products with reactivity to baked milk is a non-billable ICD-10-CM category code (T78.111). |
| 7th character | The appropriate 7th character is to be added to each code from category T78 | The appropriate 7th character is to be added to each code from category T78 |
| Use additional code | code to identify the type of reaction, if applicable | code to identify the type of reaction, if applicable |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources