Coding accuracy is a discipline.

The ICD-10-CM and HCC encoder built for risk adjustment

Look up any ICD-10-CM code with the instructional notes that govern it, the index entries that lead to it, and the HCC it maps to in each CMS model. Score a chart with the working shown, and check what a code mapped to in the year it was paid.

962,486codes

969,691index entries

234,506instructional notes

10code set years

7risk models

Where to start

Index a code Work from the words in the chart. Type a term, drill through the alphabetic index the way the book runs. Browse the index The full alphabetic index, A to Z, in printed book order across Diseases, Neoplasms, Drugs and External Causes. Score a chart CMS-HCC, RxHCC and ESRD models. Shows what mapped, what the hierarchy suppressed, and what each factor contributed. Look up an NPI Who a provider number belongs to, their taxonomy and practice address — read live from the federal registry. Free, no account. Check a past date Was the code valid on the date of service, and what did it map to under the model that paid that year? Free, 10 code sets.

Retrospective review and RADV Payment-year HCC mappings back to PY2018, not just this year's book — see what is loaded →

How this is built

Notes keep their source

A rule at the category or chapter level is shown against the level that owns it, not merged into the code. If you have to defend a claim, you can cite where the instruction comes from.

The index runs both ways

Every path through the alphabetic index that arrives at a code, including the ones written as rules rather than codes — so you can see what the documentation would have to say.

Dates are in the link

Code sets change every 1 October. The effective date travels in the URL, so a link you send reproduces exactly what you saw.

Scores show their working

Risk scoring reports which codes mapped where, what was suppressed, and what each factor contributed — never a bare number.