Is T78.121A a billable code?
Yes. T78.121A is a billable ICD-10-CM code and can be used on claims and superbills for dates of service from October 1, 2026 to September 30, 2027.
ICD-10-CM FY2027 diagnosis code
T78.121A: Other adverse food reaction due to egg with reactivity to baked egg, initial encounter
Billable codeValid for dates of service October 1, 2026 to September 30, 2027
T78.121A is a billable ICD-10-CM diagnosis code for other adverse food reaction due to egg with reactivity to baked egg, initial encounter. It is specific enough to use on an insurance claim, a superbill or a Good Faith Estimate.
Superbill GeneratorStart a superbill with T78.121A already added.Good Faith EstimateStart a cost estimate with T78.121A already added.CMS-1500 Claim FormFill a claim form with T78.121A in box 21.
Other codes in T78.121 Other adverse food reaction due to egg with reactivity to baked egg
T78.121A questions
What does T78.121A mean?
T78.121A is the ICD-10-CM code for Other adverse food reaction due to egg with reactivity to baked egg, initial encounter. It is in chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.