AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2021 Issue 1; Ask the Editor

Medications Used on an As-Needed Basis

A patient diagnosed with asthma is currently on prescribed inhaled albuterol, “as needed” for control of symptoms. Since the medication is prescribed for long-term treatment of asthma, would it be appropriate to assign a code from category Z79, Long-term (current) drug therapy, even though the medication is taken pro re nata (PRN) to control symptoms of asthma? ...

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