Coding Reference

Official Coding Guidelines

Browse ICD-10-CM and ICD-10-PCS Official Guidelines, NCCI coding policies for CPT®/HCPCS, and tabular instructional notes.

  • Browses the ICD-10-CM Official Guidelines for Coding and Reporting (Conventions, Selection of Principal Diagnosis, Reporting Additional Diagnoses, Outpatient Services, Present on Admission).
  • Surfaces NCCI coding policies for CPT®/HCPCS bundling.
  • Indexes ICD-10-PCS conventions and Tabular Notes (Includes/Excludes1/Excludes2/Code first/Use additional code).
  • Deep-linked from code-detail pages so you can jump from a specific code to the governing guideline.

You enter

ICD-10-CM Official Guidelines · Section I.A — Conventions (Excludes1 vs Excludes2)

You get

The full official text of the selected convention rendered inline, with sidebar navigation to adjacent chapters and sub-sections.

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