ICD-10 Alphabetical Index 2026

Browse all 98,262 ICD-10-CM diagnosis codes by condition name. Click any row to view full details.

Browse by First Letter of Condition Name

A

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All conditions starting with "A"

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No codes starting with "A"

About the ICD-10-CM Alphabetical Index

This alphabetical index lists all ICD-10-CM 2026 diagnosis codes organized by condition name. Medical coders use this index to locate the correct code for a documented diagnosis. The index includes all 98,262 codes — 74,795 billable codes and 23,467 category headers. Click any row to view full details including Excludes1 rules, Excludes2 notes, coding instructions, and hierarchy.