Medicare secondary payer

✓ CURRENT — JULY 2026

Source: CMS

Imported: Aug 10 2026

Full descriptor

Medicare secondary payer (msp)

Details

Code: M2
Short descriptor: Medicare secondary payer
Code set: HCPCS Modifiers
Release: July 2026
Status: Active
Added: Jan 1 2007

Nearby codes

Code sets are published in blocks, so neighbours are usually related.

6-mo maint/svc fee parts/lbr

Sources

CMS HCPCS Modifiers — July 2026, public domain

Reference information only. Not billing advice. Verify against the payer before you file.

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Code set changes, when they happen

CMS revises HCPCS quarterly and NPPES monthly. When a release lands and we import it, you hear what changed. That is the whole email.

One email per release. One-click unsubscribe. No other mail, ever.

Data ledger

Every dataset and when we pulled it →

Source	Dataset	Pulled	Cadence	Licence	Status
CMS	HCPCS Level II	July 2026	Quarterly	Public domain	Current
CMS	NPPES / NPI registry	Aug 21 2026	Weekly	Public domain	Overdue
NUCC	Provider taxonomy	Aug 2026	Biannual	Free	Current
CMS	Place of Service codes	Feb 2026	As needed	Public domain	Current

1 dataset is past its update window. Anything overdue stays marked in amber on its own pages. We would rather tell you.

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Tools

NPI Lookup HCPCS Level II Modifiers Place of Service

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Reference information only. Not medical, legal, or billing advice. Verify against the payer before you file. Data sourced from CMS, NPPES and NUCC, all public domain. We do not display CPT codes, which are owned by the American Medical Association and require a licence.