CMS Medicare Coverage Database
Search national and local Medicare coverage documents by CPT/HCPCS code, keyword, or document ID.
Open official coverage search ↗Official-source research desk
Start with the right source—not a confident guess.
Use one research surface to route a code or operational question to current CMS and HHS resources, then document what was verified and when.
Trusted-source navigator
Choose the authority that fits the question.
No patient information is needed. Search terms are processed only in your browser; the official site opens in a new tab.
CMS HCPCS Quarterly Update
Review current public Level II HCPCS additions, revisions, and discontinuations.
Open official HCPCS files ↗CMS ICD-10 Files
Review official diagnosis and inpatient procedure code files and annual updates.
Open official ICD-10 files ↗CMS Prior Authorization API FAQ
Understand federal prior-authorization operational requirements, timing, denial reasons, and metrics.
Read official PA guidance ↗HHS HIPAA Guidance
Find official privacy and security guidance, including risk analysis resources.
Read HHS guidance ↗CMS Medicare Learning Network
Find official Medicare education for billing, coverage, compliance, and operational topics.
Open MLN resources ↗Rylign Signal Desk
Operational updates worth translating into workflow.
Curated from official sources. Last reviewed August 24, 2026. Verify the source before changing policy or production work.
Prior-authorization decisions and transparency
CMS guidance describes denial-reason requirements, 72-hour expedited and 7-calendar-day standard decision timeframes for impacted payers, plus public prior-authorization metrics.
Read the official source ↗October 2026 HCPCS quarterly files
CMS posted the October 2026 Alpha-Numeric HCPCS files. Teams should validate effective dates and payer adoption before updating workflows.
Read the official source ↗FY 2027 ICD-10 updates
CMS lists the FY 2027 ICD-10-CM and ICD-10-PCS files for services and discharges beginning October 1, 2026.
Read the official source ↗