Authorization Units to Request
Billing units to request for an authorization period.
Open the tool → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Dose in mg or mg per kg
- mg per kg of body weight
- Maintenance dose
- 5
- Weight, for mg per kg
- 72 kg
- Billing unit size from the HCPCS descriptor
- 10 mg
- Days between maintenance doses
- 56
- First maintenance dose in the period
- 2026-07-01
- Last day of the period
- 2026-12-31
- Number of loading doses
- 2
- Loading dose, same basis
- 5
Result: Request 216 billing units: 4 maintenance doses of 360 mg = 36 units each, billed as 36; 2 loading doses of 360 mg = 36 units each, billed as 36.
The tool opens with these values already filled in. Replace them with your own.
What you enter
- Dose in mg or mg per kg
- Maintenance dose
- Weight, for mg per kg
- Billing unit size from the HCPCS descriptor
- Days between maintenance doses
- First maintenance dose in the period (YYYY-MM-DD)
- Last day of the period (YYYY-MM-DD)
- Number of loading doses (0 if none)
- Loading dose, same basis
How this is calculated
Citation
CMS HCPCS Level II drug code descriptors (each code's billing unit) and CMS Pub. 100-04 Ch. 17: each administration is billed in whole units, so a partial unit rounds up per administration. Administrations are counted at the stated interval. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.