T78.089 — Anaphylactic reaction due to eggs, unspecified
T78.089 is a non-billable header ICD-10-CM code for anaphylactic reaction due to eggs, unspecified. 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
Risk adjustment
T78.089 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 T78.089 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 T78.089.
- Allergy, allergic›eggs›anaphylactic reaction
- Shock›anaphylactic›due to food›eggs
Code to one of these instead T78.089
3 child codes. Green means billable.
Related codes at this level
Codes that share T78.08. If T78.089 is not quite right, the correct code is usually one of these.
Questions about T78.089
- Is T78.089 a billable ICD-10-CM code?
- No. T78.089 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does T78.089 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).