M1321 HCPCS Level II code: Patients who were not seen within 7 weeks following the date of injection for follow up or who did not have a documented iop or no plan of care documented if…

M1321 is the HCPCS code for “Patients who were not seen within 7 weeks following the date of injection for follow up or who did not have a documented iop or no plan of care documented if the iop was >25 mm hg” in CMS’s October 2026 release, in effect from Oct 1, 2026.

Official description

M1321

Patients who were not seen within 7 weeks following the date of injection for follow up or who did not have a documented iop or no plan of care documented if the iop was >25 mm hg

Short description: Pts no 7wk inj,no iop,iop>25

HCPCS · United States

Medicare details

The indicators CMS publishes with M1321 in its October 2026 file. They describe Medicare’s handling, not another payer’s.

Medicare coverage
Carrier judgment
Medicare pricing
Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)
Type of service
Medical care
BETOS category
Undefined codes
Added
Jan 1, 2024

Where M1321 sits

  1. 1M codesMedical services and quality measures
  2. 2Active code M1321Patients who were not seen within 7 weeks following the date of injection for follow up or who did not have a documented iop or no plan of care documented if the iop was >25 mm hg

Source and release

Data release
HCPCS Level II · October 2026
Effective date
Oct 1, 2026
Publisher
CMS

This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

Frequently asked questions

What does HCPCS code M1321 mean?

M1321 is the HCPCS code for “Patients who were not seen within 7 weeks following the date of injection for follow up or who did not have a documented iop or no plan of care documented if the iop was >25 mm hg” in CMS’s HCPCS Level II October 2026 release.

Does Medicare cover M1321?

CMS lists M1321’s Medicare coverage as “Carrier judgment” and its pricing as “Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.

Which HCPCS Level II release does this page use?

It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.