CDC ICD-10-CM
Official ICD-10-CM files, updates, browser tools, and coding resources.
- Code files and updates
- Official guidelines
- Diagnosis classification resources
Compliance Resources
Coding & Documentation
Primary references for code assignment, edits, coverage, medical necessity, and documentation defensibility.
Reference standard: Confirm the current effective date and applicability of each source before relying on it for an audit finding, coding decision, provider education, or compliance determination.
CMS ICD-10
CMS resources for ICD-10-CM and ICD-10-PCS implementation and updates.
- ICD-10 files
- Implementation guidance
- Annual updates
AMA CPT Coding Resources
Official AMA information and educational resources for the CPT code set.
- CPT updates
- Coding education
- CPT resources
CMS HCPCS
CMS information for HCPCS Level II codes, updates, and related files.
- Quarterly updates
- Code files
- HCPCS background
Medicare NCCI
CMS correct-coding edits, manuals, files, and FAQs.
- Procedure-to-Procedure edits
- Medically Unlikely Edits
- NCCI Policy Manual
Medicare Coverage Database
Search National Coverage Determinations, Local Coverage Determinations, and related articles.
- NCDs
- LCDs
- Billing and coding articles