AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2024 Issue 1; Ask the Editor
Underdosing for Medications Taken as Needed (PRN)
A patient presents to the Emergency Department with shortness of breath due to an exacerbation of asthma. The patient did not take his PRN medication, albuterol, because he lost his inhaler. Coding Clinic First Quarter 2021, pages 12-13, clarified that PRN medications are not classified as long-term drug therapy. Is it appropriate to assign a code for underdosing when a PRN medication, such as albuterol is not taken? ...
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Article Overview
This article explains a Coding Clinic clarification about how to think about missed as-needed medications in a clinical scenario involving asthma and emergency care. It is intended for coding professionals who need to understand whether this type of situation is handled as underdosing or under another ICD-10-CM noncompliance category. The discussion focuses on the general classification issue, the role of PRN therapy, and the context in which the guidance was issued.
Why This Topic Matters
Accurate classification of medication nonuse affects diagnosis coding consistency, query accuracy, and compliant documentation interpretation. This topic is especially relevant in emergency and outpatient coding when a patient reports not using an as-needed medication and the case includes an acute exacerbation.
What You Will Learn
- How the article frames PRN medication use in relation to ICD-10-CM coding
- What broad coding category the guidance discusses for a missed as-needed medication
- How a respiratory exacerbation context is used to illustrate the issue
- What Coding Clinic source is referenced for the clarification
Who Should Read This
- Medical coders
- Coding auditors
- Clinical documentation specialists
- Revenue cycle professionals
- Compliance staff
Codes Discussed
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