ICD-10-CM R78: Findings of drugs and other substances, not normally found in blood

ICD-10-CM Diagnosis Code (2025)

Official Description for R78

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

Coding Notes & Guidelines for R78

Excludes1: Not Coded Here

lead poisoning (T56.0-)

Excludes1: Not Coded Here

sepsis-code to specified infection

Excludes2: Not Included Here

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

Use Additional Code

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

Use Additional Code

external cause code (Y90.-), for detail regarding alcohol level.

Inclusion Terms

Finding of abnormal level of lithium in blood

Child Codes (More Specific Codes for R78):

R78.0 - Finding of alcohol in blood R78.1 - Finding of opiate drug in blood R78.2 - Finding of cocaine in blood R78.3 - Finding of hallucinogen in blood R78.4 - Finding of other drugs of addictive potential in blood R78.5 - Finding of other psychotropic drug in blood R78.6 - Finding of steroid agent in blood R78.7 - Finding of abnormal level of heavy metals in blood R78.71 - Abnormal lead level in blood R78.79 - Finding of abnormal level of heavy metals in blood R78.8 - Finding of other specified substances, not normally found in blood R78.81 - Bacteremia R78.89 - Finding of other specified substances, not normally found in blood R78.9 - Finding of unspecified substance, not normally found in blood

About ICD-10-CM Code R78 (Findings of drugs and other substances)

ICD-10-CM code R78 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM R78 became effective on October 1, 2024.

This page provides detailed information about R78 - Findings of drugs and other substances, not normally found in blood. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Findings of drugs and other substances related to not normally found in blood.