Answer :
Final answer:
The ICD-CM code for a habitual abuser of cannabis is F12.20 (option a). Other ICD codes denote different aspects of cannabis use but do not specifically indicate habitual abuse.
Explanation:
In the realm of medical coding, the ICD-CM code that represents a patient who is a habitual abuser of cannabis is denoted as ICD-10-CM code F12.20. This code is used in clinical settings to categorize and designate the medical condition of the patient, specifically indicating cannabis dependence. Other codes, such as ICD-10-CM code F12.90, F12.10, and F12.50 signify different aspects of cannabis use but do not specifically describe habitual misuse.
Hence, the answer is option a.
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