In the August 2022 version of the National Council for Prescription Drug Programs (NCPDP) Telecommunication Version D and Above Questions, Answers and Editorial Updates, there is new guidance in section 3.1.3 regarding interchangeable biosimilar products and Dispense As Written (DAW)/Product Selection Code (408-D8) field in anticipation of the DAW code definition updates which should go into effect October 15, 2023. With more interchangeable biosimilar products set to hit the market later this year, it is important to understand how to appropriately use these DAW codes to prevent future audit issues.
Section 3.1.3 of the NCPDP document starts by outlining the FDA definitions of a biosimilar product, interchangeable product, and reference product. It goes on to state that when a prescriber indicates DAW 1 on a prescription, substitution of the product as written is not appropriate and when the prescriber does not indicate DAW 1 on a script, DAW 0 or DAW 2-9 could be appropriate. The chart below was included in the NCPDP document to aid pharmacies in determining appropriate DAW codes to bill.
Prescribed Drug |
Substitution Allowed
Substitution Not Allowed |
Dispensed/Billed Drug |
DAW Code (408-D8) |
Reference Product |
Allowed |
Interchangeable Biosimilar |
0 |
Reference Product |
Not Allowed |
Reference Product |
1 |
Reference Product |
Allowed |
Reference Product |
2-9 |
Interchangeable Biosimilar |
Allowed |
Interchangeable Biosimilar |
0 |
Interchangeable Biosimilar |
Not Allowed |
Interchangeable Biosimilar |
1 |
Interchangeable Biosimilar |
Allowed |
Reference Product |
2-9 |
While this chart is useful, you may be asking yourself – What does this all mean?! Let us go through several examples. Become an audit assistance member today to continue reading this article. As a member, you’ll have access to hundreds of articles and receive our monthly proactive newsletter!
Did you know there is much more to your audit assistance membership than just help with audits? The PAAS Member Portal contains a wealth of information and resources to assist you with audits and member service questions. Below is a list of 6 pages found on the Audit Assistance section of the PAAS Member Portal to assist you and your pharmacy staff to be proactive when it comes to audits.
- Access Services
- Audit Documentation Submission Guidance
- An online form to submit safe filling and billing questions
- Your PAAS Membership Manual
- Newsline
- Monthly newsletter articles, written by our expert PAAS analyst team, provide safe filling and billing tips and relays relevant/current PBM trends to be help prevent audits
- Search the Newsline Archive to get PAAS tips at the click of a button
- Special Edition Newslines including: Top 10 articles of the prior year, DMEPOS Article Series and a Self-Audit Article Series
- Ability to print monthly issues or individual articles
- Proactive Tips
- Audit flags – list of various claim attributes the PBMs use to select claims for audit
- Billing insulin vials – flowchart to assist whether you should bill Medicare Part B vs Part D
- DAW Codes Explained – use to understand when to effectively use DAW codes, their definitions and why claims may be flagged for audit if a DAW code is used incorrectly
- Basic DMEPOS documentation guidance
- Onsite Credentialing Checklist and expanded definitions of policies and procedures
- Proof of refill request and affirmative response form for DMEPOS items
- Steps on how to prepare for an onsite audit
- And more!
- Days’ Supply Charts
- Utilize the days’ supply charts for inhalers, insulins, nasal sprays, eye drops and topicals to aid you in calculating the correct days’ supply
- Guidance on overbilled quantities and incorrect days’ supply account for a sizable portion of audit chargebacks
- Additional miscellaneous charts, which include: Dispense in Original Container and Return to Stock
- Forms
- Signature Logbook for print
- Signature Trifold Mailer
- Fax and Email Coversheet
- Patient Attestation for over-the-counter COVID-19 test kits
- On-Demand Webinars
- Short webinars on hot topics in the PBM industry. Here are a few examples:
- USP 800 Compliance
- Cultural Competency Training
- Dispensing Prescriptions Off-Label
- Biologic Medications and Interchangeability
- Continuous Glucose Monitor Requirements for Medicare Part B
PAAS Tips:
- MORE AUDITS, MORE INSIGHT – PAAS National® is the industry-leading defender of community pharmacy dealings with Prescription Benefit Programs, including Caremark, Express Scripts, Humana, Medicaid, OptumRx, Prime Therapeutics., and more. PAAS assists on all third-party audits, including: desktop audits, onsite audits, invoice audits, OIG/Medicaid audits, Medicare B audits. The PAAS team is dedicated to helping you! We have five pharmacists and a complement of technician analysts with over 50 years of dedicated audit assistance experience. PAAS continuously updates their database with every audit received — in fact, we even keep a scorecard on individual auditors.
- Get answers to your questions on days’ supply calculations, drug substitutions, billing practices, required documentation, prior authorization requirements, record retention, and internal audit procedures – just to name a few. As a trusted partner, we will provide tailored guidance to help you proactively prevent audits. Remember, the prescription claims you submit today are the audits of the future.
- Keep your employees engaged and help lower audit risk by adding all employees to the portal and giving them permission to access these tools, resources and eNewsline. For more information review September 2019 Newsline article, What Are You Waiting For? Make Sure ALL of Your Employees are Added to the PAAS Portal!
- Contact PAAS at (608) 873-1342, if you would like a tour of your PAAS Member Portal, so you can reap all the benefits of your PAAS Audit Assistance. We appreciate you being a member.