M1451 HCPCS Level II code: Patients with an active diagnosis of pervasive developmental disorder any time prior to the end of the measure assessment period
M1451 is the HCPCS code for “Patients with an active diagnosis of pervasive developmental disorder any time prior to the end of the measure assessment period” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
M1451Patients with an active diagnosis of pervasive developmental disorder any time prior to the end of the measure assessment period
Short description: Pt dx ppd dur id/pf pd
HCPCS · United States
Medicare details
The indicators CMS publishes with M1451 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, 2026
Where M1451 sits
- 1M codesMedical services and quality measures
- 2Active code M1451Patients with an active diagnosis of pervasive developmental disorder any time prior to the end of the measure assessment period
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 M1451 mean?
M1451 is the HCPCS code for “Patients with an active diagnosis of pervasive developmental disorder any time prior to the end of the measure assessment period” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover M1451?
CMS lists M1451’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.
Codes beside M1451
All M codesM1445Postpartum care visit before or at 12 weeks of giving birthM1446Patients who died any time prior to the end of the measure assessment periodM1447Patients with an active diagnosis of bipolar disorder any time prior to the end of the measure assessment periodM1448Patients with an active diagnosis of personality disorder any time prior to the end of the measure assessment periodM1449Patients with an active diagnosis of schizophrenia or psychotic disorder any time prior to the end of the measure assessment periodM1450Patients who received hospice or palliative care service any time during denominator identification period or the measure assessment periodM1452Patient ever had a diagnosis of dementiaM1453Patients with a pre-operative visual acuity better than 20/40M1454New ciedM1455Replaced or revised ciedM1456Patient had a heart transplantM1457Patient 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…