R78

R78: Findings of drugs and other substances, not normally found in blood

Non-billable headerICD-10-CM

R78 is a non-billable header ICD-10-CM code for findings of drugs and other substances, not normally found in blood. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

mental or behavioral disorders due to psychoactive substance use (F10-F19)

Use additional code

Add a secondary code to capture the detail described below.

code to identify any retained foreign body, if applicable (Z18.-)

Other codes that can never be billed with R78

Their own Excludes1 notes name this code, so the conflict is not listed above.

A41Other sepsis
A49.9Bacterial infection, unspecified
R79.0Abnormal level of blood mineral

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead R78

10 child codes. Green means billable.