R78.4
ICD-10-CMThis code indicates the presence of substances with addictive potential, other than alcohol or specified illicit drugs, detected in a patient's blood sample. It signifies a positive laboratory finding for drugs such as benzodiazepines, opioids (excluding heroin and cannabis), stimulants, or other psychoactive medications that are not explicitly categorized elsewhere. This finding may be incidental or related to a suspected overdose, intoxication, or monitoring of medication adherence.
Use this code when laboratory results confirm the presence of unprescribed or misused drugs of addictive potential in the blood, and the specific drug is not covered by more specific codes (e.g., T40.2X1A for opioid poisoning). This code is appropriate for documenting positive drug screens for substances like benzodiazepines, barbiturates, or other controlled substances when the clinical context does not indicate poisoning or abuse/dependence as the primary diagnosis. Documentation should clearly state the positive finding of a drug of addictive potential in the blood.
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