So do you know your Narx Score?

First, what is the Narx Score?  How did it come about?

In 2011, a company in Louisville, KY—Appriss—had their first meeting to begin the development of the analytics of PDMP data creating the Narx Score. The Narx Score is a numeric reflection of a patient’s controlled drug use. PMP Interconnect was also launched in 2011 with three states sharing data. In 2014, the patent filed in 2011 for the Narx Score algorithm (NARxCHECK) was transferred to the NABP (National Association of Boards of Pharmacies).

NARxCHECK is a patented algorithm that analyzes controlled substance data from PDMPs and provides insight into a patient’s controlled substance use.  NARxCHECK quantifies risk with a 3-digit score, termed a “Narx Score”, which ranges from 000-999. Variables used to get this number include

  • Drug equivalents
  • Number of providers
  • Potentiating drugs (benzos and opioids together)
  • Number of pharmacies
  • Number of overlapping prescription days

The score is intended to create a composite risk index, which increases as the value of one or more of the risk factors above in a PDMP report increases.

Patient characteristics for the last 60 days, 180 days, year, and 2 years are assessed against a given 2009-2010 PDMP population from Ohio. The more recent data is given more weight in the algorithm than the older prescription patterns. Then the assessment of the patient prescription patterns across the different timepoints are then combined to obtain a final composite score (000 to 999).

Narx Scores are computed separately for 3 different drug types: Narcotics, sedatives, and stimulants.  However, a prescription for a narcotic does add to the sedative score, and vice versa.

The distribution of the scores are such that in any given population, 75% will fall below 200, 5% will be above 500, and only 1% will be above 650.  The last digit in the score represents the number of active prescriptions that a patient will have if medications are taken as directed.

Concerning Narx Scores are intended to trigger a discussion, not a decision. If a Narx Score raises concern, the recommended course of action is for the practitioner to evaluate the PDMP data and discuss any concerns with the patient. There is no Narx Score that is “normal”. It must be applied to the clinical scenario before evaluating appropriateness. However, for protection of the practitioner, this discussion and decision MUST be documented in the patient record. And I would recommend to patients that if any of the items evaluated above change, these changes and the reasons why should be pointed out to the practitioner at the time of the office visit so they can be documented.  Especially the fact that today pharmacies run out or deny refills, so patients have to jump to multiple pharmacies.  This can increase your Narx Score and put your practitioner in the DOJ crosshairs.

The Narx Score is calculated as a weighted average of the scaled values. 50% of the weighting is applied to the milligram equivalencies of prescribed drugs and the remaining risk factors make up the other 50%.

There are currently three PMP based indicators:

  • More than 5 providers in any year.
  • More than 4 pharmacies in any 3-month period
  • More than 40 MED average and more than 100 MME total at any time in the previous 2 years.

The Narx Scores were designed such that:

  1. Patients who use small amounts of medication with limited provider and pharmacy usage will have low scores.
  2. Patients who use large amounts of medications in accordance with recommended guidelines will have mid-range scores.
  3. Patients who use large amounts of medications while using many providers and pharmacies and with frequently overlapping prescriptions, will have high scores.

The Narx Score was just introduced to me by an investigating doctor. It was developed after my practice was closed.  So I have questions for you.  Obviously, if all of the states are using a data algorithm to assess controlled drug use, and most states are using the Narx Score, are patients made aware of their score by their practitioner?  When you get your records from your physician or they are transferred to another clinic, are Narx Scores included? Do pharmacies share your Narx Score with you?

Then we get to the more occult thinking.  Could Narx scores be the reasoning behind pharmacists refusing to fill a patient’s script?  If so, that would be against the basic concept of the purpose of the Narx score.

Please share any experience with this score-keeping method or any other your state might be using. If you’ve never heard of it, you can find out what method your state is using through your pharmacist.

Addendum

The research on the Narx Score was provided by Neil Anand, MD.  He was interviewed by The Doctor Patient Forum on Sept 26, 2022.  You can listen to his interview HERE.

About the Author Linda Cheek, MD

Linda Cheek is a teacher and disenfranchised medical doctor, turned activist, author, and speaker. A victim of prosecutorial misconduct and outright law-breaking of the government agencies DEA, DHHS, and DOJ, she hopes to be a part of exonerating all doctors illegally attacked through the Controlled Substance Act. She holds the key to success, as she can offset the government propaganda that drugs cause addiction with the truth: The REAL Cause of Drug Abuse.
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