M1145 Most favored nation (mfn) model drug add-on amount, per dose, (do not bill with line items that have the jw modifier)

Short descriptor: Mfn drug add-on, per dose

⚠ Terminated HCPCS Level II 2026
Terminated Code
M1145 was terminated as of 2022-02-27 and should not be reported for dates of service after that date. This page is retained for historical reference.
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M1145 is the HCPCS Level II code for Most favored nation (mfn) model drug add-on amount, per dose, (do not bill with line items that have the jw modifier) (2026). It belongs to Section M — Medical Services. Under Medicare, its coverage status is: Carrier judgment. Part B pricing methodology: Not separately priced by Part B.

Classification & CMS Attributes

Medicare Coverage
Carrier judgment (code C)
Part B Pricing
Not separately priced by Part B (indicator 00)
Type of Service
Medical care
Effective Date
2022-02-28
Termination Date
2022-02-27
2026 Maintenance
No change this year

References

Cite This Page

Reference M1145 with the canonical source and edition:

M1145 — Most favored nation (mfn) model drug add-on amount, per dose, (do not bill with line items that have the jw modifier). ICD-10 Coding Pro (HCPCS Level II 2026). https://icd10codingpro.com/hcpcs-codes/M1145

Canonical URL: https://icd10codingpro.com/hcpcs-codes/M1145

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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2026-01-01

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