M1451Medical Services

Patients with an active diagnosis of pervasive developmental disorder any time

Short description: Pt dx ppd dur id/pf pd

Effective date
January 1, 2026
Termination date

Related codes (M-series)

Frequently asked questions

What is HCPCS code M1451?

M1451 is a HCPCS Level II code for Patients with an active diagnosis of pervasive developmental disorder any time.

What category is HCPCS code M1451 in?

M1451 falls under the Medical Services category of HCPCS Level II.

When did HCPCS code M1451 become effective?

M1451 has been effective since January 1, 2026, per CMS's quarterly HCPCS update.

HCPCS Level II data from CMS (public domain). HCPCS Level I (CPT) codes are not included — CPT is copyrighted by the American Medical Association. Always verify codes with authoritative sources before making coding or billing decisions.