Look up any medical code, fast.

Search the full FY2027 ICD-10-CM diagnosis codes, ICD-10-PCS procedure codes and HCPCS Level II codes by code or by description. Free, no sign-up, straight from the official CMS and CDC files.

Popular right now:
74,879ICD-10-CM diagnosis codes (FY2027)
79,256ICD-10-PCS procedure codes (FY2027)
7,448HCPCS Level II codes (Oct 2026)
364HCPCS modifiers
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Browse the code sets

ICD-10-CM - diagnoses

Every billable diagnosis code for FY2027, organized by the 22 chapters and 1,921 categories. Used on every claim, in every setting.

ICD-10-PCS - inpatient procedures

The 7-character procedure codes hospitals report for inpatient stays, grouped by section, body system and root operation.

HCPCS Level II - supplies, drugs, services

Ambulance, DME, orthotics, drugs and services that CPT does not cover, plus all 364 Level II modifiers.

What about CPT codes?

CPT is HCPCS Level I and its descriptions are licensed by the AMA, so they are not published here. Here is what that means and where prices by CPT code live.

NCCI pair checker

Can these two codes be billed together? Check any pair against the 2026 Q4 Medicare PTP edits, with the modifier indicator that decides whether documentation can separate them.

Medicare fee schedule

What Medicare pays for a code in CY2026, national and adjusted for your locality. Every payable code has a fee page with its RVUs, MUE cap and bundling edits.

New for FY2027

The FY2027 ICD-10 files took effect on October 1, 2026. ICD-10-CM added 190 codes, deleted 30 and revised 8 descriptions; ICD-10-PCS added 101 codes and deleted 38. Codes deleted for FY2027 are not valid for dates of service on or after October 1, 2026. See what changed and what to check in your favorites and templates.

Guides

How to look up an ICD-10-CM code

Alphabetic index first, tabular list second, and why guessing from a search result alone causes denials.

ICD-10-CM vs ICD-10-PCS

Diagnoses vs inpatient procedures: which code set goes where on the claim.

Billable codes and specificity

Header codes, 7th characters and why the most specific code wins.

All guides

Reading a PCS code character by character, HCPCS levels, modifiers, and how the three code sets fit on one claim.

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