What ICD-10-CM code is reported for an excessive level of alcohol in the blood?

The ICD-10-CM code that is reported for an excessive level of alcohol in the blood is R78.0. This code specifically indicates a "nonspecific elevated blood alcohol level." It is used to record cases where an individual has a blood alcohol concentration that exceeds the normal range without providing details about the clinical implications or consequences of that level.

Understanding the nuances of these codes is crucial, as different codes represent distinct conditions or observations related to blood alcohol levels. In clinical coding, using the precise code ensures accurate billing, epidemiological tracking, and medical recording. Hence, R78.0 effectively captures the scenario of elevated alcohol concentration in the blood, making it the correct choice for this question.