M1464 — No documentation of at least two attempts to follow up with patient within 180 days of treatment
M1464 is a HCPCS Level II code for no documentation of at least two attempts to follow up with patient within 180 days of treatment. It belongs to the Medical Services section. Whether Medicare pays it depends on the coverage rule below.
Medicare coverage: Carrier judgment
Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
Physician fee schedule statusM
Measurement code. Used for reporting purposes only; never paid.
Global period: XXX
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The CMS record for M1464
- Long descriptor
- No documentation of at least two attempts to follow up with patient within 180 days of treatment
- Short descriptor
- No record of f/u by 180 days
- Added
- January 1, 2026
- BETOS
- Z2
- Pricing indicator
- 00 — Not priced by Part B
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Service not separately priced by Part B — not covered, bundled into another service, or used by Part A only.
Codes adjacent to M1464
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If M1464 is not quite right, the correct code is very often within a few positions of it.
- M1456Patient had a heart transplant
- M1457Patient had a diagnosis of asthma with any contact during the current or prior performance period or had asthma present on an active problem list any time during the performance period
- M1458Patient died prior to the end of the performance period
- M1459Patient was in hospice or receiving palliative care services at any time during the performance period
- M1460Diagnosis for chronic obstructive pulmonary disease, emphysema, cystic fibrosis, or acute respiratory failure
- M1461Patient diagnosis for chronic hepatitis c
- M1462Patients with clinical indications for imaging of the head
- M1463Documentation of at least two attempts to follow up with patient within 180 days of treatment
- M1465Patient follow up more than 180 days after treatment
- M1466Patient had a lumbar fusion on the same date as the discectomy/laminectomy procedure
- M1467Patients with an existing diagnosis of lynch syndrome
- M1468Patient received recommended doses of hepatitis b vaccination based on age
- M1469Patient has a history of hepatitis b illness or received a hepatitis b surface antigen, hepatitis b surface antibody, or total antibody to hepatitis b core antigen test with a positive result any time before or during the measurement period
- M1470Documentation of medical reason(s) for not administering hepatitis b vaccine (e.g., prior anaphylaxis due to the hepatitis b vaccine)
- M1471Documentation that patient is a medicare fee-for-service beneficiary and without additional supplementary insurance coverage for whom hep b vaccination is not reimbursable under current medicare part b coverage rules
- M1472Patient did not receive recommended doses of hepatitis b vaccination based on age
Questions about M1464
What is HCPCS code M1464?
M1464 is a HCPCS Level II code for no documentation of at least two attempts to follow up with patient within 180 days of treatment. It sits in the Medical Services section.
Does Medicare cover M1464?
The CMS HCPCS file marks M1464 as "Carrier judgment". Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
How is M1464 paid under the physician fee schedule?
M1464 carries PFS status code M. Measurement code. Used for reporting purposes only; never paid.