M1477Medical Services
Diagnosis of delirium
Short description: Dx delirium
- Effective date
- January 1, 2026
- Termination date
- —
Related codes (M-series)
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Frequently asked questions
What is HCPCS code M1477?
M1477 is a HCPCS Level II code for Diagnosis of delirium.
What category is HCPCS code M1477 in?
M1477 falls under the Medical Services category of HCPCS Level II.
When did HCPCS code M1477 become effective?
M1477 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.