Physician-administered outpatient drug billing and NDC/HCPCS reporting
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Governs Alaska Medicaid reimbursement rules for outpatient physician-administered drugs, focusing on accurate NDC (NOC) reporting, NDC-to-HCPCS crosswalks, unit conversion, and front-end claims processing edits that affect provider adjudication and reimbursement.
Front-end claims processing edits and specific exception codes were implemented to identify NDC/HCPCS billing discrepancies during adjudication rather than post-payment review.
A set of exception codes (e.g., 4731, 4733, 4735, 4741, 4743, 4745, 4751-4753) and their adjudication behaviors (deny, suspend/recycle 60 days, deny after 60 days) were defined for NDC/HCPCS mismatches and unit/quantity conversion errors.
Coverage and Billing Requirements
inv-01: Coverage and billing criteria
Alaska Medicaid will reimburse outpatient physician-administered drugs only when ALL of the following coverage, coding, and billing requirements are met:
ALL of the following
ALL of the following
- Manufacturer must participate in the Federal Drug Rebate program and federal matching funds must be available for the drug to be paid.
ALL of the following
ALL of the following
- Providers must bill the actual NDC (NOC) for the administered drug and record that NOC in the patient record.
- NDC/NOC must be submitted in the required format (11 digits, 5-4-2); pad with leading zeros if label lacks full 11 digits; do not include hyphens or spaces when recording on claims.
ALL of the following
ALL of the following
- Providers must submit the correct HCPCS/CPT code corresponding to the NDC; do not use a miscellaneous HCPCS if a specific HCPCS-NDC match exists.
- Ensure the correct route of administration is submitted with the HCPCS/NDC pairing.
ALL of the following
ALL of the following
- Submit NDC unit of measure and the actual units administered on the claim (use acceptable NDC units such as UN, ML, GR, F2; milligram 'mg' is not an acceptable unit qualifier for billing).
- Submit HCPCS units on the claim; the submitted NDC quantity divided by the crosswalk conversion factor (rounded up to the whole number) must equal the submitted procedure (HCPCS) quantity or the claim may be denied.
ALL of the following
Exclusions (any of the following)
- IHS and tribally operated 638 facilities reimbursed at the federally published all-inclusive rate are not subject to drug rebate applicability.
- ESRD bundled claims are not subject to drug rebate applicability unless modifier 'AY' is used to indicate the item/service is not for treatment of ESRD.
ALL of the following
ALL of the following
- Front-end claims processing edits will identify NDC/HCPCS mismatches and unit/quantity discrepancies during adjudication rather than post-payment review.
- Claims that trigger these edits will generate specified exception codes which may suspend (recycle for 60 days) or deny immediately or after 60 days according to the defined adjudication dispositions; providers should correct and resubmit claims or contact the Fiscal Agent for assistance.
Required Coding Elements and Conversion Rules
| J-codes and other HCPCS (A,C,J,P,Q,S prefixes) | HCPCS codes used with NDCs; use appropriate HCPCS for NDC and do not use miscellaneous codes if specific match exists. |
| N4 qualifier | NDC reporting qualifier used on claims (example shown). |
Adjudication Exceptions and Provider Responsibilities
Adjudication Exception Codes — Provider Responsibilities
Adjudication exception codes for NDC crosswalk processing and required provider actions: submit the correct HCPCS/procedure code that matches the billed NDC, ensure the route of administration is accurate on the claim, and verify submitted NDC quantities and conversion factors so they align with procedure quantities. If DOS does not fall within the crosswalk begin/end dates, the claim may suspend and recycle for 60 days; suspended claims will deny after 60 days if not corrected. Contact Alaska Medicaid Fiscal Agent Billing Procedures at 800.770.5650 (option 1, 1) for assistance with billing physician-administered medications.
- Exception codes: 4731, 4733, -4735, 4741, 4743, -4745, 4751, 4752, 4753
- Provider responsibilities: submit correct HCPCS/procedure code matched to NDC; include correct route of administration on claim; verify NDC quantity vs conversion factor and procedure quantity; ensure DOS falls within crosswalk begin/end dates
- Suspension behavior: ECs 4733 and 4743 will suspend and recycle for 60 days if DOS not within valid crosswalk dates or missing mappings
- Denial behavior: Suspended claims under EC 4733 or 4743 will deny after 60 days (-4735, -4745). Other denies occur for NOC/mapping mismatches (4731, 4741) and quantity/conversion errors (4752, 4753)
- Action: Correct and resubmit within 60 days to avoid denial; contact Alaska Medicaid Fiscal Agent Billing Procedures at 800.770.5650 (option 1, 1) for billing assistance
Key Definitions
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