Our clinic just started coding BMI for every encounter as applicable for HEDIS standards. Our staff uses adult BMI calculations for all age groups. The pediatric BMI codes are for patients under 21. We have been using the measurements taken by staff to convert these erroneous adult BMIs into Pediatric percentiles so that we may apply the correct code.

My questions are:
Are we allowed to do this?
Will the staff need to start using Pediatric calculations for all patients under 21?
What about Asian BMI calculations?

From what I have researched, it seems we aren’t supposed to calculate BMI ourselves, even if the height/weight/ age are there.

All insight is appreciated, thanks!