ICD-10-CM · Chapter 18 · R00–R99
R78
Findings of drugs and other substances, not normally found in blood
Symptoms, signs and abnormal clinical and laboratory findings
Heads up:this is a parent code. It's typically not directly billable — you need to drill down to a more specific child code (one with additional digits) to use on a claim.
Quick facts
- Code
- R78
- Type
- Category / header (non-billable)
- ICD-10-CM chapter
- Chapter 18 — Symptoms, signs and abnormal clinical and laboratory findings
- Category
- R78
- Specificity
- 3 characters
How coders use this code
ICD-10-CM R78 is a category (header) for findings of drugs and other substances, not normally found in blood. It is generally not reported directly on a claim — coders drill down to a more specific child code (one with additional characters) that matches the documentation. Use the related codes below to find the billable code that fits, and verify against the annual NCHS/CMS guidelines.
Related codes in R78
- R78.0Finding of alcohol in blood
- R78.1Finding of opiate drug in blood
- R78.2Finding of cocaine in blood
- R78.3Finding of hallucinogen in blood
- R78.4Finding of other drugs of addictive potential in blood
- R78.5Finding of other psychotropic drug in blood
- R78.6Finding of steroid agent in blood
- R78.7Finding of abnormal level of heavy metals in blood
- R78.71Abnormal lead level in blood
- R78.79Finding of abnormal level of heavy metals in blood
- R78.8Finding of other specified substances, not normally found in blood
- R78.81Bacteremia
- R78.89Finding of other specified substances, not normally found in blood
- R78.9Finding of unspecified substance, not normally found in blood
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