NDC dosage Calculations

pygreen

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Can anyone share with me how to calculate the NDC dosage of a drug?

I know that it should be coded in ML but the J code unit is MG.
EXAMPLE: J9299 Opdivo 1 mg. Patient given 240 mg out of two different Vials; NDC#00003-3774-12 100mg/10ML and NDC# 00003-3772-11 40mg/4ml.

Thanks for any help with this.
 

CodingKing

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HCPCS is per mg.

NDC indicates mg per ml so you need to know how many ml were injected to convert to mg

240mg would be

2x NDC#00003-3774-12 100mg/10mL
1x NDC# 00003-3772-11 40mg/4mL.

If this is what was dispensed then you would bill 240 units of J9299
 

pygreen

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NDC dosage

Yes I know that we would bill 240 Mg of J9299 but I need to know how many mL to bill for the NDC dosage. Yes we gave 2 vials of the 100mg/10mL and 1 vial of the 40mg/4mL, but I don't think billing 2 and 1 for the dosage would be correct. I need to know if there is a formula for calculating MG to ML and if so, where I might find it.

Thank you.
 

CodingKing

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Its 24mL total between the 3 vials administered. You add up the mL as specified by each NDC

NDC#00003-3774-12 100mg/10ML. This is a 10mL vial so 2 vials would be 20mL.
There is a total of 100mg in a vial

NDC# 00003-3772-11 40mg/4ml. This is a 4mL vial so 1 vial would be 4mL.
There is a total of 40 mg in a vial

You don't need to calculate anything unless a partial vial is used.
 
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