Intervention Codes
ODB - Ontario Drug Benefit
ODB Intervention Codes
Message: Prescriber ID error
MH - override prescriber ID
Generic drug not available - dispensing brand name
MI - No interchangeable available at less than or equal to Drug Benefit Price plus allowable mark-up
Message: Maximum cost is exceeded
MO - valid claim value $500 to $999.99
MP - valid claim value $1,000 to $9,999.99
Message: Identical claim processed (Vacation Supply)
MV - vacation supply
Message: Drug/drug interaction potential
UA - consulted prescriber and filled Rx as written
UF - patient gave adequate explanation. Rx filled as written
UG - cautioned patient. Rx filled as written
UI - consulted other source. Rx filled as written
Message: Initial Rx Days’ Supply Exceeded
NH - Initial Rx Program Declined
Message: Quantity Reduction Required
NF - Override - Quantity Appropriate
Message: Patient first name error or Patient last name error
PB -name entered is consistent with card
Message: Exceeds max. # of prof. fees for this drug
UN - Assessed patient. Therapy is appropriate
Message: No Private Insurance Attestation Missing
U - Enter Special Service Code “U” if submitting a claim for a child/youth 24 years of age and under who does not have a private plan
Medically Necessary ODB No Sub Claims
For audit purposes, the pharmacy should document all relevant details about the prescription to support the selection of intervention code.