T78.110 — Other adverse food reactions due to milk and dairy products with tolerance to baked milk
T78.110 is a non-billable header ICD-10-CM code for other adverse food reactions due to milk and dairy products with tolerance to baked milk. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from category T78
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- Other adverse food reaction due to milk and dairy products with reactivity to baked milk (T78.111)
Other codes that can never be billed with T78.110
These codes carry an Excludes1 note pointing at T78.110. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading T78.110 alone.
- T78.111Other adverse food reaction due to milk and dairy products with reactivity to baked milk
- T78.111AOther adverse food reaction due to milk and dairy products with reactivity to baked milk, initial encounter
- T78.111DOther adverse food reaction due to milk and dairy products with reactivity to baked milk, subsequent encounter
- T78.111SOther adverse food reaction due to milk and dairy products with reactivity to baked milk, sequela
Risk adjustment
T78.110 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
How T78.110 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to T78.110.
- Allergy, allergic›dairy products›with›tolerance to baked milk
- Allergy, allergic›milk protein›adverse reaction NEC›with›tolerance to baked milk
Code to one of these instead T78.110
3 child codes. Green means billable.
- T78.110AOther adverse food reactions due to milk and dairy products with tolerance to baked milk, initial encounter
- T78.110DOther adverse food reactions due to milk and dairy products with tolerance to baked milk, subsequent encounter
- T78.110SOther adverse food reactions due to milk and dairy products with tolerance to baked milk, sequela
Related codes at this level
Codes that share T78.11. If T78.110 is not quite right, the correct code is usually one of these.
Questions about T78.110
- Is T78.110 a billable ICD-10-CM code?
- No. T78.110 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does T78.110 sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Other and unspecified effects of external causes (T66-T78).
- What cannot be coded together with T78.110?
- T78.110 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.